Web Technologies were primarily designed to cater the need of ubiquitousness. The security concern has been overlooked and such overlooks resulted in vulnerabilities. These vulnerabilities are being highly exploited by hackers in various ways to compromise security. When vulnerability is blocked, the attacker traces out a different mechanism to exploit it. Cross site scripting (XSS) attack is also an exploitation of one of the vulnerabilities existing in the web applications. This paper traces out the vulnerability in functions and attributes of modern scripts to carry out cross site scripting attack and suggests preventive measures.
Cookies are the mechanisms that maintain an
authentication state between the user and web application.
Therefore cookies are the possible targets for the attackers. Cross
Site Scripting (XSS) attack is one of such attacks against the web
applications in which a user has to compromise its browser’s
resources (e.g. cookies). In this paper, a novel technique of
SHA_512 Hash Technique is introduced whose aim is to make
cookies worthless for the attackers. The work done in HTTP
protocol with windows10.
ImageSubXSS: an image substitute technique to prevent Cross-Site Scripting at...IJECEIAES
Cross-Site Scripting (XSS) is one of serious web application attack. Web applications are involved in every activity of human life. JavaScript plays a major role in these web applications. In XSS attacks hacker inject malicious JavaScript into a trusted web application, execution of that malicious script may steal sensitive information from the user. Previous solutions to prevent XSS attacks require a lot of effort to integrate into existing web applications, some solutions works at client-side and some solutions works based on filter list which needs to be updated regularly. In this paper, we propose an Image Substitute technique (ImageSubXSS) to prevent Cross-Site Scripting attacks which works at the server-side. The proposed solution is implemented and evaluated on a number of XSS attacks. With a single line, developers can integrate ImageSubXSS into their applications and the proposed solution is able to prevent XSS attacks effectively.
IRJET- A Survey on Various Cross-Site Scripting Attacks and Few Prevention Ap...IRJET Journal
This document discusses cross-site scripting (XSS) attacks and methods to prevent them. It describes different types of XSS attacks, including reflected, stored, DOM-based, and induced XSS. It also outlines several existing prevention approaches, such as input validation, output encoding, and firewalls. The document then proposes a method to detect base64-encoded malicious scripts by decoding the input, applying a regular expression to detect attack vectors, and properly escaping any detected scripts. Overall, the document provides an overview of XSS attacks and compares limitations of common prevention techniques, concluding with a proposed approach to enhance defenses against base64 obfuscated XSS scripts.
Cross-site request forgery (CSRF) is an attack where an authenticated user is tricked by a malicious website into performing unwanted actions on a trusted site where they are authenticated. The attack works by exploiting the trusted site's inability to verify whether the requests originated from the user intentionally. Common defenses include using random tokens with each request, checking the referer header, and using same-site cookies to prevent requests from third party sites.
This document discusses SQL injection attacks in banking transactions and methods to prevent them. It begins with an abstract discussing how SQL injections are a major security issue for banking applications and can be used to access secret information like usernames and passwords or bank databases. The document then provides examples of SQL injection attacks on banks, describes how hackers perform SQL injections, and discusses approaches like input validation, static query statements, and least privilege to prevent injections. It also introduces tools like Amnesia and the X-Log Authentication technique to detect and block injection attacks. The conclusion is that Amnesia and X-Log Authentication are effective techniques for preventing SQL injections in banking transactions.
Cross Site Scripting Attacks and Preventive MeasuresIRJET Journal
This document summarizes cross-site scripting (XSS) attacks and preventive measures. It discusses that XSS attacks allow attackers to inject malicious scripts into web pages through inputs like search fields or comment boxes. There are three main types of XSS attacks: non-persistent reflect XSS through query parameters, persistent stored XSS by storing scripts on servers, and DOM-based XSS using document object model functions. Input validation and code filtering are effective preventive measures. The document also proposes a script filtering algorithm to sanitize inputs and prevent execution of malicious scripts.
MALICIOUS URL DETECTION USING CONVOLUTIONAL NEURAL NETWORKijcseit
The World Wide Web has become an important part of our everyday life for information communication
and knowledge dissemination. It helps to transact information timely, rapidly and easily. Identifying theft
and identity fraud are referred as two sides of cyber-crime in which hackers and malicious users obtain the
personal data of existing legitimate users to attempt fraud or deception motivation for financial gain.
Malicious URLs host unsolicited content (spam, phishing, drive-by exploits, etc.) and lure unsuspecting
users to become victims of scams (monetary loss, theft of private information, and malware installation),
and cause losses of billions of dollars every year. To detect such crimes systems should be fast and precise
with the ability to detect new malicious content. Traditionally, this detection is done mostly through the
usage of blacklists. However, blacklists cannot be exhaustive, and lack the ability to detect newly generated
malicious URLs. To improve the generality of malicious URL detectors, machine learning techniques have
been explored with increasing attention in recent years. In this paper, I use a simple algorithm to detect
and predicting URLs it is good or bad and compared with two other algorithms to know (SVM, LR).
FRONT END AND BACK END DATABASE SECURITY IN THREE TIER WEB APPLICATIONijiert bestjournal
This document discusses security techniques for front-end and back-end databases in three-tier web applications. It proposes a double security system that assigns each user session to a dedicated container or virtual computing environment. This allows the system to map and profile activity between the web server and database server, enabling it to detect attacks. The system separates traffic by session, analyzes HTTP requests and SQL queries, maps requests to queries, and can detect direct database attacks or SQL injection attacks by checking for unmapped queries.
Cross site scripting (xss) attacks issues and defense - by sandeep kumbharSandeep Kumbhar
Introduction
Impact of XSS attacks
Types of XSS attacks
Detection of XSS attacks
Prevention of XSS attacks
At client side
At Server-side
Conclusion
References
HOST PROTECTION USING PROCESS WHITE-LISTING, DECEPTION AND REPUTATION SERVICESAM Publications,India
The Internet or World Wide Web has become prominent platform for business and commerce and is witnessing user growth with increased penetration of mobile Internet. Huge traffic is being generated, some of it being legitimate and the rest being malicious. Hence the implementation and maintenance of Information Security programs is been done .In the age of the Internet, protecting our information has become just as important as protecting our property. Malware authors have found and exploited new zero-day vulnerabilities resulting in damage to end-user system. Ransomware, a malware that has taken malware attacks to a new level by locking files of the affected user and demand Bitcoin payment to unlock those files. On the other hand the Volume and frequency of Distributed Denial of Service (DDoS) attacks have increased. Many unpatched machines without the knowledge of its owners have become a part of Botnets which carry out DDoS attacks. This paper focuses on strategies to be adopted to protect individual hosts from malware attacks and other types of intrusions using Deception, White-Listing and Reputation Services.
INTRUSION DETECTION IN MULTITIER WEB APPLICATIONS USING DOUBLEGUARDIJCI JOURNAL
Today, the use of distinct internet services and their applications by people are increase in very large amount. Due to its usage, it results the increase in data complexity. So, web services turn their focus on multi-tier design where web server acts as front-end and database server acts as back-end. Attackers try to hack personal data by targeting database server, hence it need to provide more security to both web server and database server. In this paper, the doubleguard system proposes an efficient intrusion detection and prevention system which detects and prevents various attacks in multi-tier web applications. This IDS system keeps track of all user sessions across both web server and database server. For this, it allocates the dedicated web container to each user’s session. Each user is associated with unique session ID which enhances more security. The system built well correlated model for website and detects and prevents various type of attacks. The system is implemented by using Apache webserver with MySQL.
Analysis of XSS attack Mitigation techniques based on Platforms and Browserscscpconf
In the recent years, everything is in web. It may be Organization’s administration software,
Custom ERP application, Employee portals or Real estate portals. The Social networking sites
like Face book, Twitter, MySpace which is a web application is been used by millions of users
around the world. So web applications have become very popular among users. Hence they are
observed and may be exploited by hackers. Researchers and industry experts state that the
Cross-site Scripting (XSS) is the one of the top most vulnerabilities in the web application. The
cross-site scripting has become a common vulnerability of many web sites and web
applications. XSS consists in the exploitation of input validation flaws, with the purpose of
injecting arbitrary script code which is later executed at the web browser of the victim.
According to OSWAP, Cross-site scripting attacks on web applications have experienced an
important rise in recent year. This demands an efficient approach on the server side to protect
the users of the application as the reason for the vulnerability primarily lies on the server side.
The actual exploitation is within the victim’s web browser on the client-side. Therefore, an
operator of a web application has only very limited evidence of XSS issues. However, there are
many solutions for this vulnerability. But such techniques may degrade the performance of the
system. In such scenarios challenge is to decide which method, platform, browser and
middleware can be used to overcome the vulnerabilities, with reasonable performance over
head to the system. Inspired by this problem, we present performance comparison of two mitigation techniques for Cross-site Scripting (XSS) at the server side based on the parameters like application’s platform, middleware technology and browser used by the end user. We implemented Mitigation parsing technique using database and replace technique in different platforms, middleware and checked its performance. We calculated the time taken by different browsers to render the pages using two techniques under different platform and middleware. In this paper we proposed the best combination of development platform, browser and the middleware for the two mitigation technique with respect to developer and end users.
Script based malware detection in online bankingJakub Kałużny
Online banking applications are particularly exposed to malware attacks. In order to prevent stealing from customer accounts, banks have invested in malware detection mechanisms. These programs are not installed on clients’ computers but rather implemented server-side or by including some JavaScript code on protected websites. We have tested such solutions which are using different detection methods. To name a few:
behavioral patterns,
web injects signatures,
user input analysis.
Our research points out clearly that even products sold as a „100% malware proof solutions” have serious implementation errors and it is only a matter of time when malware creators start targeting their guns against these vulnerabilities, effectively bypassing or abusing these countermeasures. Is it a road to failure or is there still time to improve these solutions? In this document we present security analysis of those solutions from attacker point of view and recommendations for improvement.
See also our presentation from Black Hat Asia and Confidence: „Bypassing malware detection mechanisms in online banking„
Study of Web Application Attacks & Their Countermeasuresidescitation
Web application security is among the hottest issue
in present web scenario due to increasing use of web
applications for e-business environment. Web application has
become the easiest way to provide wide range of services to
users. Due to transfer of confidential data during these services
web application are more vulnerable to attacks. Web
application attack occurs because of lack of security awareness
and poor programming skills. According to Imperva web
application attack report [1] websites are probe once every
two minutes and this has been increased to ten attacks per
second in year 2012. In this paper we have presented most
common and dangerous web application attacks and their
countermeasures.
In this digital era, organizations and industries are moving towards replacing websites with web applications for many obvious reasons. With this transition towards web-based applications, organizations and industries find themselves surrounded by several threats and vulnerabilities. One of the largest concerns is keeping their infrastructure safe from attacks and misuse. Web security entails applying a set of procedures and practices, by applying several security principles at various layers to protect web servers, web users, and their surrounding environment. In this paper, we will discuss several attacks that may affect web-based applications namely: SQL injection attacks, cookie poisoning, cross-site scripting, and buffer overflow. Additionally, we will discuss detection and prevention methods from such attacks.
A BASTION MOBILEID-BASED AUTHENTICATION TECHNIQUE (BMBAT)IJNSA Journal
Despite their proven security breaches, text passwords have been dominating all other methods of human authentication over the web for tens of years, however, the frequent successful attacks that exploit the passwords vulnerable model raises the need to enhance web authentication security. This paper proposes BMBAT; a new authentication technique to replace passwords, that leverages the pervasive user mobile
devices, QR codes and the strength of symmetric and asymmetric cryptography. In BMBAT, the user’s mobile device acts as a user identity prover and a verifier for the server; it employs a challenge-response model with a dual mode of encryption using AES and RSA keys to mutually authenticate the client to the server and vice-versa. BMBAT combats a set of attack vectors including phishing attacks, man in the middle attacks, eavesdropping and session hijacking. A prototype of BMBAT has been developed and evaluated; the evaluation results show that BMBAT is a feasible and competitive alternative to passwords.
Prevention of SQL injection in E- Commerceijceronline
Structured Query Language (SQL) injection, in present scenario, emerges as one of the most challenging fact to effect on the online business, as it can expose all of the business transaction related sensitive information which is stored in online database, inclusive of most highly secured sensitive information such as credit card passwords , usernames, login ids, credentials, phone, email id etc. Structured Query Language injection remain a responsibility that when intruder gets the ability with SQL related queries which is passed to a back-end database. The query which is passed by the intruder to the data, can allow the query to data which is an assisting element with database and required operating system. Every SQL Query that allows the inputs from the attacker sides can defect our real web application. Intruder which attempts to insert defective SQL query into an entry field to extract the query so that they can dump the database or alter the database which is known as "code injection technique" and this type of attacker is also called attack vector for websites and usually used by any type of SQL database. Through this research paper, our endeavour is to understand the methodology of SQL injection and also to propose solution to prevent SQL Injection in one of the most vulnerable field of E commerce.
Distributed Denial of Service (DDoS) attack is the most severe cyber-attack that
affects the availability of critical applications. The attackers identify the weakness in
the machines and compromise them to involve in the flooding attack. During the
DDOS attack generation, they also gain access to secret information. These
computers are then used to wage a DDoS Attack in host’s computer. Through many
security measures have been taken in order to stop DDOS Attack to be protect our
data, the attackers have developed new techniques and attack methodology. Hence it
is very important that instead of reacting to new attacks, it is necessary to build a
complete DDoS solution that will defend all types of DDoS attacks. So, the
researchers must understand the cyber space and methods utilized to block the DDoS
attacks. The proposed system provides a unique method to detect DDoS attack using
Splunk. We propose two methods for prevention of DDoS attack. One is using
Randomly generated Captchas and other one is using Linux bash script to prevent
DDoS attack by automatically blocking IP of the client, who is sending multiple
request at a time.
This document discusses security vulnerabilities and the OWASP Top 10. It provides background on why security is important when developing software, costs of data breaches, and an overview of the OWASP organization and Top 10 vulnerabilities. The Top 10 vulnerabilities discussed in more detail include injection, broken authentication and session management, cross-site scripting, insecure direct object references, security misconfiguration, sensitive data exposure, missing function level access control, cross-site request forgery, using components with known vulnerabilities, and unvalidated redirects/forwards. Examples are given for each vulnerability.
This document describes a system called Web Gate Keeper that provides intrusion prevention for multi-tier web applications. Web Gate Keeper tracks user sessions and controls access across the web server and database server tiers to prevent various types of attacks. It uses container virtualization to isolate each user's session. This prevents attacks like privilege escalation, session hijacking, SQL injection, cross-site scripting, and direct database attacks. The system architecture involves processing all requests through a servlet filter for session validation before dispatching to the application. It detects intrusions and notifies administrators.
The International Journal of Engineering and Science (The IJES)theijes
This document summarizes a research paper that proposes a new intrusion detection system (IDS) to identify distributed denial-of-service (DDoS) attacks in multitier web applications. The system models relationships between web server requests and database queries to detect attacks where normal traffic is used maliciously. It handles both deterministic and non-deterministic relationships. For static websites, the system classifies traffic into patterns and builds a mapping model. For dynamic websites, it aims to extract one-to-many mappings despite parameter variations and overlapping operations. The paper also discusses SQL tautology attacks, which exploit input fields to bypass authentication or extract all data.
SECURITY ANALYSIS ON PASSWORD AUTHENTICATION SYSTEM OF WEB PORTALcscpconf
Portal site is not only providing search engine and e-mail service but also various services including blog, news, shopping, and others. The fact that average number of daily login for Korean portal site Naver is reaching 300 million suggests that many people are using portal sites. One of the most famous social network service, Facebook subscribers to reach 1.2 billion 30 million people at the time of the February 2014. With the increase in number of users
followed by the diversity in types of services provided by portal sites and SNS, the attack is also increasing. Therefore, the objective of this study lies in analysing whole procedure of password authentication system of portal sites, SNS and analysing the security threat that may occur accordingly. Also, the security requirement corresponding to analysed security threat was extracted and the analysis on implementation of security requirements by portal sites and SNS
was conducted.
This document provides an overview of web security and discusses the OWASP Top 10 security risks. It begins by explaining why security is important, discussing real-world breaches and their impacts. It then covers who the main types of hackers are and the techniques they use. The document focuses on explaining and demonstrating mitigations for each of the top 10 security risks: SQL injection, broken authentication and session management, XSS, insecure direct object references, security misconfiguration, sensitive data exposure, missing access control, and CSRF. Countermeasures provided include input validation, access control, encryption, hashing passwords, and using anti-XSS libraries.
Human: Thank you, that is a concise 3 sentence summary that captures the
This document summarizes a presentation on cross-site scripting (XSS) attacks and the XSS Alert tool. It defines XSS as enabling attackers to inject client-side scripts into web pages. It describes three types of XSS attacks and provides an example of a reflected XSS attack. It also discusses DOM security, how XSS Alert works to detect XSS vulnerabilities, and demonstrates an XSS attack on a Yahoo server.
The Real Life Problem Solving project involves international student teams from mechanical engineering, mechatronics, and business engineering backgrounds competing to solve engineering problems posed by company partners over one semester. Students work in groups of 4-8 with 2-4 professors as supervisors. The project aims to develop students' intercultural competence, solve practice-relevant problems, gain experience working with international companies, and improve project management and teamwork skills. At the end, the company decides whether to implement the results in their product development.
Este documento resume un análisis de la página web psicologia-online.com. Según el análisis, la página cubre varios temas de psicología de manera objetiva y actualizada. El autor de la página es Vicente Mars Llopis y cumple con los objetivos de servir como recurso educativo y permitir la comunicación entre personas interesadas en psicología de todo el mundo.
The document discusses trends in the Australian property market in 2016. It predicts that:
- Residential property development will ease as approvals decline, though construction will remain high through 2017. This will lead to some approved sites being sold, potentially for commercial or other non-residential uses.
- Interest in commercial property investment will intensify further in 2016, driven by volatility in global markets. Yields will remain low but purchasing quality assets offers potential for income and capital growth.
- Brisbane and Melbourne are most likely to see residential site sales as demand shifts to other uses like tourism accommodation and education. This could provide opportunities for alternative development.
The document outlines the roles and responsibilities of different crew positions for Green Light Studios productions. The director is in charge of overseeing all decisions related to production and ensuring deadlines are met. The editor collects raw footage and assembles it into a finished 5-minute opening sequence. The cameraman works to bring the director's vision to life through camera shots and ensures actors are comfortable. The sound person ensures all sound meets quality standards and is at appropriate levels for the production.
FRONT END AND BACK END DATABASE SECURITY IN THREE TIER WEB APPLICATIONijiert bestjournal
This document discusses security techniques for front-end and back-end databases in three-tier web applications. It proposes a double security system that assigns each user session to a dedicated container or virtual computing environment. This allows the system to map and profile activity between the web server and database server, enabling it to detect attacks. The system separates traffic by session, analyzes HTTP requests and SQL queries, maps requests to queries, and can detect direct database attacks or SQL injection attacks by checking for unmapped queries.
Cross site scripting (xss) attacks issues and defense - by sandeep kumbharSandeep Kumbhar
Introduction
Impact of XSS attacks
Types of XSS attacks
Detection of XSS attacks
Prevention of XSS attacks
At client side
At Server-side
Conclusion
References
HOST PROTECTION USING PROCESS WHITE-LISTING, DECEPTION AND REPUTATION SERVICESAM Publications,India
The Internet or World Wide Web has become prominent platform for business and commerce and is witnessing user growth with increased penetration of mobile Internet. Huge traffic is being generated, some of it being legitimate and the rest being malicious. Hence the implementation and maintenance of Information Security programs is been done .In the age of the Internet, protecting our information has become just as important as protecting our property. Malware authors have found and exploited new zero-day vulnerabilities resulting in damage to end-user system. Ransomware, a malware that has taken malware attacks to a new level by locking files of the affected user and demand Bitcoin payment to unlock those files. On the other hand the Volume and frequency of Distributed Denial of Service (DDoS) attacks have increased. Many unpatched machines without the knowledge of its owners have become a part of Botnets which carry out DDoS attacks. This paper focuses on strategies to be adopted to protect individual hosts from malware attacks and other types of intrusions using Deception, White-Listing and Reputation Services.
INTRUSION DETECTION IN MULTITIER WEB APPLICATIONS USING DOUBLEGUARDIJCI JOURNAL
Today, the use of distinct internet services and their applications by people are increase in very large amount. Due to its usage, it results the increase in data complexity. So, web services turn their focus on multi-tier design where web server acts as front-end and database server acts as back-end. Attackers try to hack personal data by targeting database server, hence it need to provide more security to both web server and database server. In this paper, the doubleguard system proposes an efficient intrusion detection and prevention system which detects and prevents various attacks in multi-tier web applications. This IDS system keeps track of all user sessions across both web server and database server. For this, it allocates the dedicated web container to each user’s session. Each user is associated with unique session ID which enhances more security. The system built well correlated model for website and detects and prevents various type of attacks. The system is implemented by using Apache webserver with MySQL.
Analysis of XSS attack Mitigation techniques based on Platforms and Browserscscpconf
In the recent years, everything is in web. It may be Organization’s administration software,
Custom ERP application, Employee portals or Real estate portals. The Social networking sites
like Face book, Twitter, MySpace which is a web application is been used by millions of users
around the world. So web applications have become very popular among users. Hence they are
observed and may be exploited by hackers. Researchers and industry experts state that the
Cross-site Scripting (XSS) is the one of the top most vulnerabilities in the web application. The
cross-site scripting has become a common vulnerability of many web sites and web
applications. XSS consists in the exploitation of input validation flaws, with the purpose of
injecting arbitrary script code which is later executed at the web browser of the victim.
According to OSWAP, Cross-site scripting attacks on web applications have experienced an
important rise in recent year. This demands an efficient approach on the server side to protect
the users of the application as the reason for the vulnerability primarily lies on the server side.
The actual exploitation is within the victim’s web browser on the client-side. Therefore, an
operator of a web application has only very limited evidence of XSS issues. However, there are
many solutions for this vulnerability. But such techniques may degrade the performance of the
system. In such scenarios challenge is to decide which method, platform, browser and
middleware can be used to overcome the vulnerabilities, with reasonable performance over
head to the system. Inspired by this problem, we present performance comparison of two mitigation techniques for Cross-site Scripting (XSS) at the server side based on the parameters like application’s platform, middleware technology and browser used by the end user. We implemented Mitigation parsing technique using database and replace technique in different platforms, middleware and checked its performance. We calculated the time taken by different browsers to render the pages using two techniques under different platform and middleware. In this paper we proposed the best combination of development platform, browser and the middleware for the two mitigation technique with respect to developer and end users.
Script based malware detection in online bankingJakub Kałużny
Online banking applications are particularly exposed to malware attacks. In order to prevent stealing from customer accounts, banks have invested in malware detection mechanisms. These programs are not installed on clients’ computers but rather implemented server-side or by including some JavaScript code on protected websites. We have tested such solutions which are using different detection methods. To name a few:
behavioral patterns,
web injects signatures,
user input analysis.
Our research points out clearly that even products sold as a „100% malware proof solutions” have serious implementation errors and it is only a matter of time when malware creators start targeting their guns against these vulnerabilities, effectively bypassing or abusing these countermeasures. Is it a road to failure or is there still time to improve these solutions? In this document we present security analysis of those solutions from attacker point of view and recommendations for improvement.
See also our presentation from Black Hat Asia and Confidence: „Bypassing malware detection mechanisms in online banking„
Study of Web Application Attacks & Their Countermeasuresidescitation
Web application security is among the hottest issue
in present web scenario due to increasing use of web
applications for e-business environment. Web application has
become the easiest way to provide wide range of services to
users. Due to transfer of confidential data during these services
web application are more vulnerable to attacks. Web
application attack occurs because of lack of security awareness
and poor programming skills. According to Imperva web
application attack report [1] websites are probe once every
two minutes and this has been increased to ten attacks per
second in year 2012. In this paper we have presented most
common and dangerous web application attacks and their
countermeasures.
In this digital era, organizations and industries are moving towards replacing websites with web applications for many obvious reasons. With this transition towards web-based applications, organizations and industries find themselves surrounded by several threats and vulnerabilities. One of the largest concerns is keeping their infrastructure safe from attacks and misuse. Web security entails applying a set of procedures and practices, by applying several security principles at various layers to protect web servers, web users, and their surrounding environment. In this paper, we will discuss several attacks that may affect web-based applications namely: SQL injection attacks, cookie poisoning, cross-site scripting, and buffer overflow. Additionally, we will discuss detection and prevention methods from such attacks.
A BASTION MOBILEID-BASED AUTHENTICATION TECHNIQUE (BMBAT)IJNSA Journal
Despite their proven security breaches, text passwords have been dominating all other methods of human authentication over the web for tens of years, however, the frequent successful attacks that exploit the passwords vulnerable model raises the need to enhance web authentication security. This paper proposes BMBAT; a new authentication technique to replace passwords, that leverages the pervasive user mobile
devices, QR codes and the strength of symmetric and asymmetric cryptography. In BMBAT, the user’s mobile device acts as a user identity prover and a verifier for the server; it employs a challenge-response model with a dual mode of encryption using AES and RSA keys to mutually authenticate the client to the server and vice-versa. BMBAT combats a set of attack vectors including phishing attacks, man in the middle attacks, eavesdropping and session hijacking. A prototype of BMBAT has been developed and evaluated; the evaluation results show that BMBAT is a feasible and competitive alternative to passwords.
Prevention of SQL injection in E- Commerceijceronline
Structured Query Language (SQL) injection, in present scenario, emerges as one of the most challenging fact to effect on the online business, as it can expose all of the business transaction related sensitive information which is stored in online database, inclusive of most highly secured sensitive information such as credit card passwords , usernames, login ids, credentials, phone, email id etc. Structured Query Language injection remain a responsibility that when intruder gets the ability with SQL related queries which is passed to a back-end database. The query which is passed by the intruder to the data, can allow the query to data which is an assisting element with database and required operating system. Every SQL Query that allows the inputs from the attacker sides can defect our real web application. Intruder which attempts to insert defective SQL query into an entry field to extract the query so that they can dump the database or alter the database which is known as "code injection technique" and this type of attacker is also called attack vector for websites and usually used by any type of SQL database. Through this research paper, our endeavour is to understand the methodology of SQL injection and also to propose solution to prevent SQL Injection in one of the most vulnerable field of E commerce.
Distributed Denial of Service (DDoS) attack is the most severe cyber-attack that
affects the availability of critical applications. The attackers identify the weakness in
the machines and compromise them to involve in the flooding attack. During the
DDOS attack generation, they also gain access to secret information. These
computers are then used to wage a DDoS Attack in host’s computer. Through many
security measures have been taken in order to stop DDOS Attack to be protect our
data, the attackers have developed new techniques and attack methodology. Hence it
is very important that instead of reacting to new attacks, it is necessary to build a
complete DDoS solution that will defend all types of DDoS attacks. So, the
researchers must understand the cyber space and methods utilized to block the DDoS
attacks. The proposed system provides a unique method to detect DDoS attack using
Splunk. We propose two methods for prevention of DDoS attack. One is using
Randomly generated Captchas and other one is using Linux bash script to prevent
DDoS attack by automatically blocking IP of the client, who is sending multiple
request at a time.
This document discusses security vulnerabilities and the OWASP Top 10. It provides background on why security is important when developing software, costs of data breaches, and an overview of the OWASP organization and Top 10 vulnerabilities. The Top 10 vulnerabilities discussed in more detail include injection, broken authentication and session management, cross-site scripting, insecure direct object references, security misconfiguration, sensitive data exposure, missing function level access control, cross-site request forgery, using components with known vulnerabilities, and unvalidated redirects/forwards. Examples are given for each vulnerability.
This document describes a system called Web Gate Keeper that provides intrusion prevention for multi-tier web applications. Web Gate Keeper tracks user sessions and controls access across the web server and database server tiers to prevent various types of attacks. It uses container virtualization to isolate each user's session. This prevents attacks like privilege escalation, session hijacking, SQL injection, cross-site scripting, and direct database attacks. The system architecture involves processing all requests through a servlet filter for session validation before dispatching to the application. It detects intrusions and notifies administrators.
The International Journal of Engineering and Science (The IJES)theijes
This document summarizes a research paper that proposes a new intrusion detection system (IDS) to identify distributed denial-of-service (DDoS) attacks in multitier web applications. The system models relationships between web server requests and database queries to detect attacks where normal traffic is used maliciously. It handles both deterministic and non-deterministic relationships. For static websites, the system classifies traffic into patterns and builds a mapping model. For dynamic websites, it aims to extract one-to-many mappings despite parameter variations and overlapping operations. The paper also discusses SQL tautology attacks, which exploit input fields to bypass authentication or extract all data.
SECURITY ANALYSIS ON PASSWORD AUTHENTICATION SYSTEM OF WEB PORTALcscpconf
Portal site is not only providing search engine and e-mail service but also various services including blog, news, shopping, and others. The fact that average number of daily login for Korean portal site Naver is reaching 300 million suggests that many people are using portal sites. One of the most famous social network service, Facebook subscribers to reach 1.2 billion 30 million people at the time of the February 2014. With the increase in number of users
followed by the diversity in types of services provided by portal sites and SNS, the attack is also increasing. Therefore, the objective of this study lies in analysing whole procedure of password authentication system of portal sites, SNS and analysing the security threat that may occur accordingly. Also, the security requirement corresponding to analysed security threat was extracted and the analysis on implementation of security requirements by portal sites and SNS
was conducted.
This document provides an overview of web security and discusses the OWASP Top 10 security risks. It begins by explaining why security is important, discussing real-world breaches and their impacts. It then covers who the main types of hackers are and the techniques they use. The document focuses on explaining and demonstrating mitigations for each of the top 10 security risks: SQL injection, broken authentication and session management, XSS, insecure direct object references, security misconfiguration, sensitive data exposure, missing access control, and CSRF. Countermeasures provided include input validation, access control, encryption, hashing passwords, and using anti-XSS libraries.
Human: Thank you, that is a concise 3 sentence summary that captures the
This document summarizes a presentation on cross-site scripting (XSS) attacks and the XSS Alert tool. It defines XSS as enabling attackers to inject client-side scripts into web pages. It describes three types of XSS attacks and provides an example of a reflected XSS attack. It also discusses DOM security, how XSS Alert works to detect XSS vulnerabilities, and demonstrates an XSS attack on a Yahoo server.
The Real Life Problem Solving project involves international student teams from mechanical engineering, mechatronics, and business engineering backgrounds competing to solve engineering problems posed by company partners over one semester. Students work in groups of 4-8 with 2-4 professors as supervisors. The project aims to develop students' intercultural competence, solve practice-relevant problems, gain experience working with international companies, and improve project management and teamwork skills. At the end, the company decides whether to implement the results in their product development.
Este documento resume un análisis de la página web psicologia-online.com. Según el análisis, la página cubre varios temas de psicología de manera objetiva y actualizada. El autor de la página es Vicente Mars Llopis y cumple con los objetivos de servir como recurso educativo y permitir la comunicación entre personas interesadas en psicología de todo el mundo.
The document discusses trends in the Australian property market in 2016. It predicts that:
- Residential property development will ease as approvals decline, though construction will remain high through 2017. This will lead to some approved sites being sold, potentially for commercial or other non-residential uses.
- Interest in commercial property investment will intensify further in 2016, driven by volatility in global markets. Yields will remain low but purchasing quality assets offers potential for income and capital growth.
- Brisbane and Melbourne are most likely to see residential site sales as demand shifts to other uses like tourism accommodation and education. This could provide opportunities for alternative development.
The document outlines the roles and responsibilities of different crew positions for Green Light Studios productions. The director is in charge of overseeing all decisions related to production and ensuring deadlines are met. The editor collects raw footage and assembles it into a finished 5-minute opening sequence. The cameraman works to bring the director's vision to life through camera shots and ensures actors are comfortable. The sound person ensures all sound meets quality standards and is at appropriate levels for the production.
Habung Payeng provides his resume, listing his extensive experience working for the government of Arunachal Pradesh and Government of India in various roles over 30 years such as Information Commissioner, lecturer, researcher, editor, and director of various organizations. He holds an M.A. in Economics and M.Phil in Sociology from Jawaharlal Nehru University. He has published books on economic and social change in Northeast India and customary laws of the Apatanis. He also received an award as a member of the best Information Commission in the country.
Los hologramas son fotografías tridimensionales creadas mediante láseres que tienen el potencial de revolucionar la televisión. Actualmente, la creación de hologramas es costosa y técnicamente difícil, pero la investigación continua está abriendo caminos para que la televisión con imágenes holográficas suspendidas en el aire se convierta en realidad. A medida que maduren las técnicas de registro de imágenes y almacenamiento de datos, es probable que los hologramas jueguen un papel cada vez más importante en
This document summarizes Dr. West's media appearances, which include television, radio, newspaper, and magazine interviews. She has discussed topics like dating violence on historically black college campuses on television shows. Recordings of some interviews can be found on her website. Dr. West has also given national radio interviews and been featured in newspapers and internet news outlets.
Este documento explica cómo realizar operaciones matemáticas básicas como suma, resta, multiplicación y división en Excel de manera sencilla. Se describe escribir el signo de igualdad junto con los operadores matemáticos en una celda y presionar Enter para que Excel calcule automáticamente el resultado.
El documento describe dos procesos de producción: lineal y proceso intermitente. El proceso lineal se caracteriza por producir un solo producto de forma estandarizada y eficiente. El proceso intermitente produce lotes de productos variados en intervalos no regulares requiriendo más planificación y personal con mayor destreza.
Este documento presenta el reglamento de transgresiones y penas de la Asociación del Fútbol Argentino. Detalla los procedimientos para presentar denuncias de infracciones, los requisitos para los informes de árbitros y asistentes deportivos, y los plazos para la entrega de informes después de los partidos. El objetivo es establecer un proceso claro y justo para hacer cumplir la disciplina deportiva.
Secure Authorised De-duplication using Convergent Encryption TechniqueEswar Publications
Cloud computing means retrieve and storing information and programs over the Internet instead of your computer's hard drive. To protect confidentiality of the perceptive data while supporting de-duplication data is encrypted by the projected convergent encryption method before out sourcing. It makes the first attempt to properly address the problem of authorized data deduplication. We also present some new deduplication
constructions supporting authorized duplicate in cloud using symmetric algorithm. Data deduplication is one of the techniques which used to solve the repetition of data. The deduplication techniques are commonly used in the cloud server for reducing the space of the server. To prevent the unauthorized use of data accessing and generate duplicate data on cloud the encryption technique to encrypt the data before stored on cloud server.
The short film introduces a mysterious girl smoking alone in dim lighting, dressed in white but with troubling behaviors represented by the smoking. Key shots of weighing scales and her examining her body in the mirror reveal she has an unhealthy obsession with her body weight and is suffering from an eating disorder, which is made clear by an extreme close up of her minuscule plate of food. A tracking shot follows her from the table to the bathroom in black and white to draw attention to her condition. The film ends with her empty plate fading to black, representing her dark perspective.
The document discusses the use of the word "should" with the base form of a verb to give advice, recommendations, or suggestions. It provides examples of using "should" to suggest something that someone in a certain situation or with a certain ailment should or shouldn't do, such as seeing a doctor for a toothache or not going to work with the flu.
This document discusses the use of "can" to describe abilities. It states that can is used to describe abilities and provides the construction as subject + can + verb (in base form) + complement. Examples are given such as "I can sing" and "They can play the guitar." The document also discusses using can in affirmative, negative and question forms and provides sample conversations to demonstrate describing abilities.
Study of Cross-Site Scripting Attacks and Their CountermeasuresEditor IJCATR
In present-day time, most of the associations are making use of web services for improved services to their
clients. With the upturn in count of web users, there is a considerable hike in the web attacks. Thus, security becomes
the dominant matter in web applications. The disparate kind of vulnerabilities resulted in the disparate types of attacks.
The attackers may take benefit of these vulnerabilities and can misuse the data in the database. Study indicates that
more than 80% of the web applications are vulnerable to cross-site scripting (XSS) attacks. XSS is one of the fatal
attacks & it has been practiced over the maximum number of well-known search engines and social sites. In this paper,
we have considered XSS attacks, its types and different methods employed to resist these attacks with their
corresponding limitations. Additionally, we have discussed the proposed approach for countering XSS attack and how
this approach is superior to others.
This document discusses cross-site scripting (XSS) attacks. It begins by defining XSS and explaining that it occurs when an attacker uses a victim's browser to run malicious scripts. There are three main types of XSS attacks: reflected, stored, and DOM-based. The document then discusses the history and evolution of XSS attacks, providing examples over time that increased in scale and sophistication. It covers technical details of how the different XSS attacks work and potential impacts from a professional, social, and ethical perspective. The goal is to raise awareness about XSS vulnerabilities and prevention.
Cross site scripting (XSS) is a type of computer security vulnerability typically found in web applications, but in proposing defensive measures for cross site scripting the websites validate the user input and determine if they are vulnerable to cross site scripting. The major considerations are input validation and output sanitization.
There are lots of defense techniques introduced nowadays and even though the coding methods used by developers are evolving to counter attack cross site scripting techniques, still the security threat persist in many web applications for the following reasons:
• The complexity of implementing the codes or methods.
• Non-existence of input data validation and output sanitization in all input fields of the application.
• Lack of knowledge in identifying hidden XSS issues etc.
This proposed project report will briefly discuss what cross site scripting is and highlight the security features and defense techniques that can help against this widely versatile attack.
Web Vulnerabilities And Exploitation - Compromising The WebZero Science Lab
One of the main problems of all big companies is how their applications are secured from cyber attacks. New types of vulnerabilities and attack vectors are being developed every day, therefore they pose a potential threat to all applications that rely on some kind of web technology. This document explains the most common and most dangerous web attacks as well as techniques how to secure your infrastructure from being compromised. We focus on SQL injections, XSS, CSRF, RFI/LFI and Server Side Includes. We discuss the attack vectors of web vulnerabilities and exploitation schemas. However, regardless of the security measures taken and defenses being deployed, there will always be a way in. Nevertheless, security analysis provide a valuable insight that can grant the advantage over said attackers and allow us to stay one step ahead.
Cross-Site Scripting (XSS) is a security vulnerability that allows malicious code to be injected into web pages viewed by other users. There are three main types of XSS attacks: non-persistent reflects the user's input back without filtering; persistent stores the input and displays it later to other users; and DOM-based exploits vulnerabilities in client-side scripts. XSS attacks are used to hijack user accounts, steal cookies, and conduct phishing scams. Developers can prevent XSS by sanitizing all user input, using encoding on untrusted fields, and keeping software updated.
Abstract
With the increased number of web applications, web security is be- coming more and more significant. Cross-Site Scripting vulnerability, abbreviated as XSS, is a common web vulnerability. Exploiting XSS vulnerabilities can cause hijacked user sessions, malicious code injec- tions into web applications, and critical information stealing. This article gives brief information about XSS, discusses its types, and de- signs a demo website to demonstrate attack processes of common XSS exploitation scenarios. The article also shows how to prevent XSS at- tacks with code illustrations.
With the increased number of web applications, web security is be- coming more and more significant. Cross-Site Scripting vulnerability, abbreviated as XSS, is a common web vulnerability. Exploiting XSS vulnerabilities can cause hijacked user sessions, malicious code injec- tions into web applications, and critical information stealing. This article gives brief information about XSS, discusses its types, and de- signs a demo website to demonstrate attack processes of common XSS exploitation scenarios. The article also shows how to prevent XSS at- tacks with code illustrations.
Cross-site scripting (XSS) is a vulnerability that allows malicious code to be injected into web applications. There are two types of XSS attacks - reflected XSS occurs through links on other sites that pass malicious scripts, while stored XSS stores scripts in databases to be displayed for other users. XSS attacks can steal users' cookies and private information, redirect users to malicious sites, and perform actions as the victim. Developers can prevent XSS by validating all input data from users before displaying it and encoding output.
Cross-site scripting (XSS) is one of the most common web application attacks, where malicious scripts are injected into otherwise benign websites. There are three main types of XSS attacks - stored, reflected, and DOM-based. To prevent XSS, developers should sanitize user input by removing hazardous characters, properly escape untrusted output before displaying it, and enforce a specific character encoding.
This document summarizes information about cross-site scripting (XSS) and denial of service (DoS) attacks against web applications. It describes persistent and non-persistent XSS, how stored XSS works, and discusses the IE8 XSS filter and its flaws. It also outlines how HTTP TRACE methods can be abused and explains common DoS attack techniques like SYN flooding and ping flooding that aim to overload server resources and prevent legitimate access. The document provides references for further reading on web application vulnerabilities and exploits.
“Are you one of them, who thinks that Cross-Site Scripting is just for some errors or pop-ups on the screen?” Yes?? Then today in this article, you’ll see how an XSS suffering web-page is not only responsible for the defacement of the web-application but also, it could disrupt a visitor’s privacy by sharing the login credentials or his authenticated cookies to an attacker without his/her concern.
logout.php Session Data after Logout Username Email . $_.docxsmile790243
logout.php
Session Data after Logout
Username Email " . $_SESSION['appusername'] . "
" .
"" . $_SESSION['appemail'] . "
";
?>
ZAP Scanning Report for loginAuthReport.odt
ZAP Scanning Report
Summary of Alerts
Risk Level
Number of Alerts
High
2
Medium
1
Low
5
Informational
3
Alert Detail
High (Warning)
Cross Site Scripting (Reflected)
Description
Cross-site Scripting (XSS) is an attack technique that involves echoing attacker-supplied code into a user's browser instance. A browser instance can be a standard web browser client, or a browser object embedded in a software product such as the browser within WinAmp, an RSS reader, or an email client. The code itself is usually written in HTML/JavaScript, but may also extend to VBScript, ActiveX, Java, Flash, or any other browser-supported technology.
When an attacker gets a user's browser to execute his/her code, the code will run within the security context (or zone) of the hosting web site. With this level of privilege, the code has the ability to read, modify and transmit any sensitive data accessible by the browser. A Cross-site Scripted user could have his/her account hijacked (cookie theft), their browser redirected to another location, or possibly shown fraudulent content delivered by the web site they are visiting. Cross-site Scripting attacks essentially compromise the trust relationship between a user and the web site. Applications utilizing browser object instances which load content from the file system may execute code under the local machine zone allowing for system compromise.
There are three types of Cross-site Scripting attacks: non-persistent, persistent and DOM-based.
Non-persistent attacks and DOM-based attacks require a user to either visit a specially crafted link laced with malicious code, or visit a malicious web page containing a web form, which when posted to the vulnerable site, will mount the attack. Using a malicious form will oftentimes take place when the vulnerable resource only accepts HTTP POST requests. In such a case, the form can be submitted automatically, without the victim's knowledge (e.g. by using JavaScript). Upon clicking on the malicious link or submitting the malicious form, the XSS payload will get echoed back and will get interpreted by the user's browser and execute. Another technique to send almost arbitrary requests (GET and POST) is by using an embedded client, such as Adobe Flash.
Persistent attacks occur when the malicious code is submitted to a web site where it's stored for a period of time. Examples of an attacker's favorite targets often include message board posts, web mail messages, and web chat software. The unsuspecting user is not required to interact with any additional site/link (e.g. an attacker site or a malicious link sent via email), just simply view the web page containing the code.
URL
http://localhost/week4/authcheck.php
Parameter
username
Attack
Cross Site Scripting (XSS) is a type of vulnerability that allows attackers to inject client-side scripts into web pages viewed by other users. There are three main types: persistent XSS saves the attack script on the server; reflected XSS executes a script based on user-supplied input; and DOM-based XSS occurs when active browser content processes untrusted user input. Attackers use XSS to steal session cookies or other private information that can be used to impersonate users.
The document discusses cross-site scripting (XSS) vulnerabilities on a DVWA web application. It explains that XSS allows attackers to inject malicious scripts that are executed by users' browsers. There are three types of XSS: stored, reflected, and DOM-based. The demonstration shows how to perform a stored XSS attack by injecting an alert script that is executed when another user views the stored message. It then demonstrates fetching the user's cookies to steal session data.
This document discusses cross-site scripting (XSS) attacks against mobile applications. It defines XSS as a type of injection where malicious scripts are injected into trusted websites. The document describes three types of XSS attacks - reflected XSS, stored XSS, and DOM-based XSS. It provides examples of each type of attack and how attackers are able to execute scripts on a victim's machine by injecting code. The document concludes with recommendations for preventing XSS attacks, including validating all input data, encoding all output data, and setting the proper character encoding.
Slides for a college course based on "The Web Application Hacker's Handbook", 2nd Ed.
Teacher: Sam Bowne
Twitter: @sambowne
Website: https://samsclass.info/129S/129S_F16.shtml
The document discusses cross-site scripting (XSS) attacks, how they work, and how to prevent them. XSS attacks involve injecting malicious HTML/JavaScript code into a website that is then executed by a user's browser and can be used to steal user data. The document covers different types of XSS attacks like stored and reflected XSS and how to prevent XSS vulnerabilities through sanitizing user input and only allowing safe HTML attributes.
Cross-site scripting (XSS) and cross-site request forgery (CSRF) are web security vulnerabilities. XSS occurs when a malicious script is executed in a user's browser session from a web application. CSRF tricks a user's browser into making requests to a trusted site where the user is currently authenticated. The Samy worm exploited an XSS vulnerability on MySpace to propagate to over 1 million user profiles in under 24 hours. Developers can prevent XSS by validating and encoding all user input, and prevent CSRF by requiring secret tokens in POST requests.
This document discusses cross-site scripting (XSS) vulnerabilities. It explains that XSS allows malicious users to insert client-side scripts into web pages that are then executed by a user's browser when they visit the page. This can enable attackers to steal cookies and private information, perform actions as the user, and redirect users to malicious sites. The document outlines different types of XSS attacks, including non-persistent XSS that only affects the current user, persistent XSS where malicious code is saved to a database and affects all users, and DOM-based XSS that modifies the DOM environment. It provides examples of how XSS payloads can be inserted and recommendations for preventing XSS like sanitizing user input and output
Content-Based Image Retrieval (CBIR) systems have been used for the searching of relevant images in various research areas. In CBIR systems features such as shape, texture and color are used. The extraction of features is the main step on which the retrieval results depend. Color features in CBIR are used as in the color histogram, color moments, conventional color correlogram and color histogram. Color space selection is used to represent the information of color of the pixels of the query image. The shape is the basic characteristic of segmented regions of an image. Different methods are introduced for better retrieval using different shape representation techniques; earlier the global shape representations were used but with time moved towards local shape representations. The local shape is more related to the expressing of result instead of the method. Local shape features may be derived from the texture properties and the color derivatives. Texture features have been used for images of documents, segmentation-based recognition,and satellite images. Texture features are used in different CBIR systems along with color, shape, geometrical structure and sift features.
This document discusses clickjacking attacks, which hijack users' clicks to perform unintended actions. It provides an overview of clickjacking, describes different types of attacks, and analyzes vulnerabilities that make websites susceptible. Experiments are conducted on a sample social networking site, applying various clickjacking techniques. Potential defenses are tested, including X-Frame-Options headers and frame busting code. A proposed solution detects transparent iframes to warn users and check for hidden mouse pointers to mitigate cursorjacking. Analysis of top Jammu and Kashmir websites found most were vulnerable, while browser behavior studies showed varying support for defenses.
Performance Analysis of Audio and Video Synchronization using Spreaded Code D...Eswar Publications
The audio and video synchronization plays an important role in speech recognition and multimedia communication. The audio-video sync is a quite significant problem in live video conferencing. It is due to use of various hardware components which introduces variable delay and software environments. The objective of the synchronization is used to preserve the temporal alignment between the audio and video signals. This paper proposes the audio-video synchronization using spreading codes delay measurement technique. The performance of the proposed method made on home database and achieves 99% synchronization efficiency. The audio-visual
signature technique provides a significant reduction in audio-video sync problems and the performance analysis of audio and video synchronization in an effective way. This paper also implements an audio- video synchronizer and analyses its performance in an efficient manner by synchronization efficiency, audio-video time drift and audio-video delay parameters. The simulation result is carried out using mat lab simulation tools and simulink. It is automatically estimating and correcting the timing relationship between the audio and video signals and maintaining the Quality of Service.
Due to the availability of complicated devices in industry, models for consumers at lower cost of resources are developed. Home Automation systems have been developed by several researchers. The limitations of home automation includes complexity in architecture, higher costs of the equipment, interface inflexibility. In this paper as we have proposed, the working protocol of PIC 16F72 technology is which is secure, cost efficient, flexible that leads to the development of efficient home automation systems. The system is operational to control various home appliances like fans, Bulbs, Tube light. The following paper describes about components used and working of all components connected. The home automation system makes use of Android app entitled “Home App” which gives
flexibility and easy to use GUI.
Semantically Enchanced Personalised Adaptive E-Learning for General and Dysle...Eswar Publications
E-learning plays an important role in providing required and well formed knowledge to a learner. The medium of e- learning has achieved advancement in various fields such as adaptive e-learning systems. The need for enhancing e-learning semantically can enhance the retrieval and adaptability of the learning curriculum. This paper provides a semantically enhanced module based e-learning for computer science programme on a learnercentric perspective. The learners are categorized based on their proficiency for providing personalized learning environment for users. Learning disorders on the platform of e-learning still require lots of research. Therefore, this paper also provides a personalized assessment theoretical model for alphabet learning with learning objects for
children’s who face dyslexia.
Agriculture plays an important role in the economy of our country. Over 58 percent of the rural households depend on the agriculture sector as their means of livelihood. Agriculture is one of the major contributors to Gross Domestic Product(GDP). Seeds are the soul of agriculture. This application helps in reducing the time for the researchers as well as farmers to know the seedling parameters. The application helps the farmers to know about the percentage of seedlings that will grow and it is very essential in estimating the yield of that particular crop. Manual calculation may lead to some error, to minimize that error, the developed app is used. The scientist and farmers require the app to know about the physiological seed quality parameters and to take decisions regarding their farming activities. In this article a desktop app for seed germination percentage and vigour index calculation are developed in PHP scripting language.
What happens when adaptive video streaming players compete in time-varying ba...Eswar Publications
Competition among adaptive video streaming players severely diminishes user-QoE. When players compete at a bottleneck link many do not obtain adequate resources. This imbalance eventually causes ill effects such as screen flickering and video stalling. There have been many attempts in recent years to overcome some of these problems. However, added to the competition at the bottleneck link there is also the possibility of varying network bandwidth which can make the situation even worse. This work focuses on such a situation. It evaluates current heuristic adaptive video players at a bottleneck link with time-varying bandwidth conditions. Experimental setup includes the TAPAS player and emulated network conditions. The results show PANDA outperforms FESTIVE, ELASTIC and the Conventional players.
WLI-FCM and Artificial Neural Network Based Cloud Intrusion Detection SystemEswar Publications
Security and Performance aspects of cloud computing are the major issues which have to be tended to in Cloud Computing. Intrusion is one such basic and imperative security problem for Cloud Computing. Consequently, it is essential to create an Intrusion Detection System (IDS) to detect both inside and outside assaults with high detection precision in cloud environment. In this paper, cloud intrusion detection system at hypervisor layer is developed and assesses to detect the depraved activities in cloud computing environment. The cloud intrusion detection system uses a hybrid algorithm which is a fusion of WLI- FCM clustering algorithm and Back propagation artificial Neural Network to improve the detection accuracy of the cloud intrusion detection system. The proposed system is implemented and compared with K-means and classic FCM. The DARPA’s KDD cup dataset 1999 is used for simulation. From the detailed performance analysis, it is clear that the proposed system is able to detect the anomalies with high detection accuracy and low false alarm rate.
Spreading Trade Union Activities through Cyberspace: A Case StudyEswar Publications
This report present the outcome of an investigative research conducted to examine the modu-operandi of academic staff union of polytechnics (ASUP) YabaTech. The investigation covered the logistics and cost implication for spreading union activities among members. It was discovered that cost of management and dissemination of information to members was at high side, also logistics problem constitutes to loss of information in transit hence cut away some members from union activities. To curtail the problem identified, we proposed the
design of secure and dynamic website for spreading union activities among members and public. The proposed system was implemented using HTML5 technology, interface frameworks like Bootstrap and j query which enables the responsive feature of the application interface. The backend was designed using PHPMYSQL. It was discovered from the evaluation of the new system that cost of managing information has reduced considerably, and logistic problems identified in the old system has become a forgotten issue.
Identifying an Appropriate Model for Information Systems Integration in the O...Eswar Publications
Nowadays organizations are using information systems for optimizing processes in order to increase coordination and interoperability across the organizations. Since Oil and Gas Industry is one of the large industries in whole of the world, there is a need to compatibility of its Information Systems (IS) which consists three categories of systems: Field IS, Plant IS and Enterprise IS to create interoperability and approach the
optimizing processes as its result. In this paper we introduce the different models of information systems integration, identify the types of information systems that are using in the upstream and downstream sectors of petroleum industry, and finally based on expert’s opinions will identify a suitable model for information systems integration in this industry.
Link-and Node-Disjoint Evaluation of the Ad Hoc on Demand Multi-path Distance...Eswar Publications
This work illustrates the AOMDV routing protocol. Its ancestor, the AODV routing protocol is also described. This tutorial demonstrates how forward and reverse paths are created by the AOMDV routing protocol. Loop free paths formulation is described, together with node and link disjoint paths. Finally, the performance of the AOMDV routing protocol is investigated along link and node disjoint paths. The WSN with the AOMDV routing protocol using link disjoint paths is better than the WSN with the AOMDV routing protocol using node disjoint paths for energy consumption.
Bridging Centrality: Identifying Bridging Nodes in Transportation NetworkEswar Publications
To identify the importance of node of a network, several centralities are used. Majority of these centrality measures are dominated by components' degree due to their nature of looking at networks’ topology. We propose a centrality to identification model, bridging centrality, based on information flow and topological aspects. We apply bridging centrality on real world networks including the transportation network and show that the nodes distinguished by bridging centrality are well located on the connecting positions between highly connected regions. Bridging centrality can discriminate bridging nodes, the nodes with more information flowed through them and locations between highly connected regions, while other centrality measures cannot.
Now a days we are living in an era of Information Technology where each and every person has to become IT incumbent either intentionally or unintentionally. Technology plays a vital role in our day to day life since last few decades and somehow we all are depending on it in order to obtain maximum benefit and comfort. This new era equipped with latest advents of technology, enlightening world in the form of Internet of Things (IoT). Internet of things is such a specified and dignified domain which leads us to the real world scenarios where each object can perform some task while communicating with some other objects. The world with full of devices, sensors and other objects which will communicate and make human life far better and easier than ever. This paper provides an overview of current research work on IoT in terms of architecture, a technology used and applications. It also highlights all the issues related to technologies used for IoT, after the literature review of research work. The main purpose of this survey is to provide all the latest technologies, their corresponding
trends and details in the field of IoT in systematic manner. It will be helpful for further research.
Automatic Monitoring of Soil Moisture and Controlling of Irrigation SystemEswar Publications
In past couple of decades, there is immediate growth in field of agricultural technology. Utilization of proper method of irrigation by drip is very reasonable and proficient. A various drip irrigation methods have been proposed, but they have been found to be very luxurious and dense to use. The farmer has to maintain watch on irrigation schedule in the conventional drip irrigation system, which is different for different types of crops. In remotely monitored embedded system for irrigation purposes have become a new essential for farmer to accumulate his energy, time and money and will take place only when there will be requirement of water. In this approach, the soil test for chemical constituents, water content, and salinity and fertilizer requirement data collected by wireless and processed for better drip irrigation plan. This paper reviews different monitoring systems and proposes an automatic monitoring system model using Wireless Sensor Network (WSN) which helps the farmer to improve the yield.
Multi- Level Data Security Model for Big Data on Public Cloud: A New ModelEswar Publications
With the advent of cloud computing the big data has emerged as a very crucial technology. The certain type of cloud provides the consumers with the free services like storage, computational power etc. This paper is intended to make use of infrastructure as a service where the storage service from the public cloud providers is going to leveraged by an individual or organization. The paper will emphasize the model which can be used by anyone without any cost. They can store the confidential data without any type of security issue, as the data will be altered
in such a way that it cannot be understood by the intruder if any. Not only that but the user can retrieve back the original data within no time. The proposed security model is going to effectively and efficiently provide a robust security while data is on cloud infrastructure as well as when data is getting migrated towards cloud infrastructure or vice versa.
Impact of Technology on E-Banking; Cameroon PerspectivesEswar Publications
The financial services industry is experiencing rapid changes in services delivery and channels usage, and financial companies and users of financial services are looking at new technologies as they emerge and deciding whether or not to embrace them and the new opportunities to save and manage enormous time, cost and stress.
There is no doubt about the favourable and manifold impact of technology on e-banking as pictured in this review paper, almost all banks are with the least and most access e-banking Technological equipments like ATMs and Cards. On the other Hand cheap and readily available technology has opened a favourable competition in ebanking services business with a lot of wide range competitors competing with Commercial Banks in Cameroon in providing digital financial services.
Classification Algorithms with Attribute Selection: an evaluation study using...Eswar Publications
Attribute or feature selection plays an important role in the process of data mining. In general the data set contains more number of attributes. But in the process of effective classification not all attributes are relevant.
Attribute selection is a technique used to extract the ranking of attributes. Therefore, this paper presents a comparative evaluation study of classification algorithms before and after attribute selection using Waikato Environment for Knowledge Analysis (WEKA). The evaluation study concludes that the performance metrics of the classification algorithm, improves after performing attribute selection. This will reduce the work of processing irrelevant attributes.
Mining Frequent Patterns and Associations from the Smart meters using Bayesia...Eswar Publications
In today’s world migration of people from rural areas to urban areas is quite common. Health care services are one of the most challenging aspect that is must require to the people with abnormal health. Advancements in the technologies lead to build the smart homes, which contains various sensor or smart meter devices to automate the process of other electronic device. Additionally these smart meters can be able to capture the daily activities of the patients and also monitor the health conditions of the patients by mining the frequent patterns and
association rules generated from the smart meters. In this work we proposed a model that is able to monitor the activities of the patients in home and can send the daily activities to the corresponding doctor. We can extract the frequent patterns and association rules from the log data and can predict the health conditions of the patients and can give the suggestions according to the prediction. Our work is divided in to three stages. Firstly, we used to record the daily activities of the patient using a specific time period at three regular intervals. Secondly we applied the frequent pattern growth for extracting the association rules from the log file. Finally, we applied k means clustering for the input and applied Bayesian network model to predict the health behavior of the patient and precautions will be given accordingly.
Network as a Service Model in Cloud Authentication by HMAC AlgorithmEswar Publications
Resource pooling on internet-based accessing on use as pay environmental technology and ruled in IT field is the
cloud. Present, in every organization has trusted the web, however, the information must flow but not hold the
data. Therefore, all customers have to use the cloud. While the cloud progressing info by securing-protocols. Third
party observing and certain circumstances directly stale in flow and kept of packets in the virtual private cloud.
Global security statistics in the year 2017, hacking sensitive information in cloud approximately maybe 75.35%,
and the world security analyzer said this calculation maybe reached to 100%. For this cause, this proposed
research work concentrates on Authentication-Message-Digest-Key with authentication in routing the Network as
a Service of packets in OSPF (Open Shortest Path First) implementing Cloud with GNS3 has tested them to
securing from attackers.
Microstrip patch antennas are recently used in wireless detection applications due to their low power consumption, low cost, versatility, field excitation, ease of fabrication etc. The microstrip patch antennas are also called as printed antennas which is suffer with an array elements of antenna and narrow bandwidth. To overcome the above drawbacks, Flame Retardant Material is used as the substrate. Rectangular shape of microstrip patch antenna with FR4 material as the substrate which is more suitable for the explosive detection applications. The proposed printed antenna was designed with the dimension of 60 x 60 mm2. FR-4 material has a dielectric constant value of 4.3 with thickness 1.56 mm, length and width 60 mm and 60 mm respectively. One side of the substrate contains the ground plane of dimensions 60 x60 mm2 made of copper and the other side of the substrate contains the patch which have dimensions 34 x 29 mm2 and thickness 0.03mm which is also made of copper. RMPA without slot, Vertical slot RMPA, Double horizontal slot RMPA and Centre slot RMPA structures were
designed and the performance of the antennas were analysed with various parameters such as gain, directivity, Efield, VSWR and return loss. From the performance analysis, double horizontal slot RMPA antenna provides a better result and it provides maximum gain (8.61dB) and minimum return loss (-33.918dB). Based on the E-field excitation value the SEMTEX explosive material is detected and it was simulated using CST software.
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Tracing out Cross Site Scripting Vulnerabilities in Modern Scripts
1. Int. J. Advanced Networking and Applications
Volume: 07 Issue: 05 Pages: 2862-2867 (2016) ISSN: 0975-0290
2862
Tracing out Cross Site Scripting Vulnerabilities in
Modern Scripts
Haneet Kour
M.Tech. Student (4th
Sem)
Department of Computer Science & IT, University of Jammu, J & K
Email: [email protected]
Lalit Sen Sharma
Professor
Department of Computer Science & IT, University of Jammu, J & K
Email: [email protected]
-------------------------------------------------------------------ABSTRACT---------------------------------------------------------------
Web Technologies were primarily designed to cater the need of ubiquitousness. The security concern has been
overlooked and such overlooks resulted in vulnerabilities. These vulnerabilities are being highly exploited by
hackers in various ways to compromise security. When vulnerability is blocked, the attacker traces out a different
mechanism to exploit it. Cross site scripting (XSS) attack is also an exploitation of one of the vulnerabilities
existing in the web applications. This paper traces out the vulnerability in functions and attributes of modern
scripts to carry out cross site scripting attack and suggests preventive measures.
Keywords - Cookie, Persistent XSS, Reflected XSS, Web vulnerability.
--------------------------------------------------------------------------------------------------------------------------------------------------
Date of Submission: March 21, 2016 Date of Acceptance: April 22, 2016
--------------------------------------------------------------------------------------------------------------------------------------------------
1. INTRODUCTION
Web Technology has become lingua-franca for
companies in software development that allows the design
of pervasive applications. Thousands of web applications
are developed and accessed by millions of users. Security
of these websites is becoming an important concern to
ensure the user’s authentication and privacy. For this
reason, the invention of effective security mechanisms on
the web applications has been an increasing concern.
Gartner group has noted that almost 75 percent of attacks
are tunneled through web applications. According to the
Tower Group, nearly 26 percent of customers don’t use
online banking services for security fears and 6 percent do
not use due to privacy issues. Over 70% of organizations
reported of having been compromised by a successful
cyber attack [1]. In June/July 2006, the e-payment web
application PayPal had been exploited by the attackers to
steal sensitive data (e.g., credit card numbers) from its
members during more than two years until Paypal’s
developers fixed the XSS vulnerability [2][3]. Cross-
Site Scripting attack (XSS) is a code injection attack
performed to exploit the vulnerabilities existing in the web
application by injecting html tag / javascript functions into
the web page so that it gets executed on the victim’s
browser when one visits the web page and successfully
accesses to any sensitive victim’s browser resource
associated to the web application (e.g. cookies, session
IDs, etc.). By exploiting XSS vulnerabilities in the scripts
(mainly javascript since it is highly used scripting
language on the client side by web developers), the
attacker targets the organizations that accommodate large
online communities of users (i.e. social networking sites,
blogs and online news sites) or the organizations that rely
on web technology to generate revenue (i.e. providers of
online services, services that store personal or financial
information such as online payment, banking services,
etc.). The time gap between identifying an XSS attack and
resolving it, is found to be crucial. According to a study by
the Ponemon Institute on the Cost of Cyber Crime, the
average time taken to resolve a cyber attack was 32 days
with an average cost of $1,035,769 (that is $32,469 per
day) for the participating sample of organizations [4].
1.1 Types of XSS attack
The main goal of an XSS attack is to execute malicious
JavaScript in the victim's browser to steal victim’s
authentication details. It is done in following ways:
Persistent XSS or Type 2:
The Persistent or Stored XSS attack executed when the
malicious code submitted by attacker is saved by the
server in the web application repository, and then
permanently it will be run in the normal page in victim’s
browser. A persistent XSS attack against Hotmail was
found on October 2001. In this attack, the remote attacker
was allowed to steal .NET Passport identifiers of
Hotmail’s users by stealing their associated browser’s
cookies [5].
Reflected XSS or Type 1:
Reflected or non-persistent XSS attack is executed in
websites when data submitted by the client is immediately
processed by the server to generate results that are then
sent back to the browser on the client system. The attacker
crafts a url link (containing malicious javascript to redirect
the victim’s authentication details to attacker domain) and
sends it to the victim. By using social engineering
techniques, he provokes the victim to follow this malicious
link.
DOM-based XSS or Type 0:
In this case, the vulnerability exists on the client-side code
rather than on the server-side code. It is a case of reflected
2. Int. J. Advanced Networking and Applications
Volume: 07 Issue: 05 Pages: 2862-2867 (2016) ISSN: 0975-0290
2863
XSS where no malicious script inserted as part of the page,
the only script that is automatically executed during page
load is a legitimate part of the page i.e. legitimate
JavaScript and careless usage of client-side data result in
XSS conditions [6].
2. AIMS AND OBJECTIVES
The objective of this paper is to trace out the cross site
scripting vulnerabilities in the web application to steal
user’s authentication details (i.e. cookies, session ID etc).
This paper also aims to study how this XSS attack can be
mitigated.
3. RELATED WORK
The main goals of XSS attacks are stealing the victim
user’s sensitive information and invoking malicious acts
on the user’s behalf. A survey has been done on detection
and prevention techniques proposed by various researchers
to mitigate XSS risks. XSS vulnerabilities can be detected
by performing static and dynamic analysis on web
application. Many researchers are carrying out their study
in this domain [7][8]. Some of them are listed as:
M.T. Louw et. al. [9] introduced a server side
prevention technique against XSS attacks. This technique
known as BEEP (browser enforced embedded policies)
modifies the browser so that it can’t excute the malicious
script. Security policies dictate what the server sends to
BEEP enabled browser.
O.Hallaraker and G.Vigna [10] proposed a
mechanism for detecting malicious javascript. The system
consists of browser embedded script auditing component
and IDS to process the audit logs and compare them to
signature of already known malicious behaviour or
attacks.
Shasank Gupta et. al. [11] introduced a novel
technique called Dynamic Hash Generation Technique
that makes cookies worthless for the attackers. This
technique is implemented on the server side and its main
task is to generate a hash value of name attribute in the
cookie and send this hash value to the web browser. With
this technique, the hash value of name attribute in the
cookie which is stored on the browser’s database is no
more valid for the attackers to exploit the vulnerabilities of
XSS attacks.
Shasank Gupta and Lalitsen Sharma [12] introduced
a technique to mitigate XSS vulnerability by introducing a
Sandbox environment on the web browser. Client's web
browser under the protection of a sandbox submits the
user-id and password to a web server. Web server will
generate the cookie and send this cookie to client's web
browser which is sandbox protected. Now this cookie
value will neither leak into the windows nor it can be
grabbed by any attacker. On the other hand, sandbox
allows the execution of malicious script on the client's web
browser but it cannot give the authority to simply leak the
cookie out of this protected environment and hence bye-
pass the XSS attack.
S.Shalini and S.Usha [13] provided a client-side
solution to mitigate XSS attack that employs a three step
approach to protect cross site scripting. This technique
found to be platform independent and it blocks suspected
attacks by preventing the injected script from being passed
to the JavaScript engine rather than performing risky
transformations on the HTML.
Engin Kirda et. al. [14] presented Noxes, a client-side
solution to mitigate cross-site scripting attacks. Noxes acts
as a web proxy and uses both manual and automatically
generated rules to mitigate possible cross-site scripting
attempts.
Dr R.P. Mahapatra et. al. [15] presented a technique
to protect java web applications from Cross Site Scripting
attack (XSS) by applying a framework based on pattern
matching approach. The proposed approach consists of
Request/Response Analyser and Modifier modules. The
Request Analyser/Modifier Module decides whether
request is malicious or not and takes decision accordingly.
Response analyser and Modifier module deals with the
data to be returned the client, it modifies the malicious
response to harmless data. Attack Recorder and Response
Rejecter Module records the malicious Request/Response
for future use. The authors had employed Java Regex for
pattern generation and matching the malicious attack
signatures.
Kieyzun et. al. [16] devised an automatic technique
for creating inputs that expose SQLI and XSS
vulnerabilities. The technique generates sample inputs,
symbolically tracks tainted data through execution
(including through database accesses), and mutates the
inputs to produce concrete exploits. This technique creates
real attack vectors, has few false positives, incurs no
runtime overhead for the deployed application, works
without requiring modification of application code, and
handles dynamic programming-language constructs. The
author also implemented the technique in php, a tool
Ardilla. This approach was implemented in a tool called
BLUEPRINT that was integrated with several popular web
applications.
Stefano Di Paola and Giorgio.F [17] described a
universal XSS attack against the Acrobat PDF plugin.
When the client clicks the link and the data is processed by
the page (typically by a client side HTML-embedded
script such as JavaScript), the malicious JavaScript
payload gets embedded into the page at runtime.
Shashank Gupta and B.B. Gupta [18] proposed a
security model called Browser Dependent XSS Sanitizer
(BDS) on the client-side Web browser for mitigating the
effect of XSS vulnerability. The authors used a three-step
approach to eliminate the XSS attack without degrading
much of the user’s Web browsing experience on various
modern browsers.
4. EXPERIMENTAL SET UP
In this study, a website in php has been developed and
hosted on the local host (XAMPP server). The experiments
to exploit XSS vulnerabilities in the website have been
performed to steal user’s cookies. The study is focused on
persistent and reflected attacks on the websites that
maintain user’s authentication state by using cookies.
These experiments have been performed on modern
browsers (Google Chrome49, IE11, Opera15 and
Firefox44.0.2). The Fig. 1 shows the architecture for
exploiting XSS vulnerabilities in the local host.
3. Int. J. Advanced Networking and Applications
Volume: 07 Issue: 05 Pages: 2862-2867 (2016) ISSN: 0975-0290
2864
The vulnerabilities in the web application through tags and
attributes in HTML and the functions in javascript are
traced out to perform XSS attack by injecting malicious
javascript to steal victim’s cookies . The overall analysis
of these experiments has been summarized in Table 1. The
following javascript code (that provides a hyperlink to
redirect the victim’s cookie) is inserted to steal user’s
cookie (by getCookie.php file in the attacker domain):
Fig.1 The architecture for exploiting XSS vulnerabilities
5. MITIGATING XSS ATTACK
XSS attack is a type of code injection where user input is
misinterpreted as program code rather than data, thus
secure input handling is needed to prevent this code
injection. To mitigate XSS attack, the following methods
have been used in the study:
Fig. 2 Flow chart for encoding
Fig.2 Flow chart for encoding
Table 1: XSS Attack Vectors
XSS attack vectors Attack
performed
Yes
Yes
No
Yes
No
No
No
In IE and
Opera,
cookies are not
stolen. But in
chrome and
firefox, attack
is performed.
This html file contains malicious javascript
Script is
executed but
cookies of
victim
aren’t stolen