Using Cookies For Selective DoS and State Detection: “
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This is a continuation of he first post where we described how you can use cookies to DoS certain portions of the website. After our speech one of the Mozilla guys came up to us and described another attack that arises from this. Let’s say when a user logs in it sets a cookie that is 200 bytes long, and when they log out it re-sets the same cookie to 50 bytes. Well if the attacker can set a cookie with a particular path to a single image on the site, for instance, they can use JavaScript to check with an onerror event handler to see if the image has loaded.
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Categories: Website Security Tags: Aspx, Attacker, Exploit, Logout, Maximum Size, Org Web, Parent Domain, Perspective, Prevention, Real Solution, Reportabuse, Scoped, Scripts, Security Lab, Sokol, Target, Web Application Security, Web Server, Web Servers, xss
Denial of Service (DoS) and distributed Denial of Service (DDoS) attacks involve an attempt to make a computer resource unavailable to its intended users. This may simply be for malicious purposes as is often the case when big commercial or famous web sites undergo a DDoS attack. However, it is also possible to exploit the system’s response to such an attack to break system firewalls, access virtual private networks, and to access other private resources. A DoS attack can also be used to affect a complete network or even a whole section of the Internet.
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Categories: Database Security, Network, Servers, Tutorialz, Website Security, Wireless Security Tags: Attack Software, Authentication Servers, Computer Engineers, David Irwin, Ddos Attack, Ddos Attacks, Denial Of Service, Denial Of Service Dos, Internet Requests, John Wu, Legitimate Traffic, Legitimate Users, Malicious Purposes, Network Denial, Private Resources, Service Denial, Target Machine, Tong Liu, Valid Passwords, Virtual Private Networks
The Top 10 Web Application security vulnerabilities
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Categories: Servers, Tutorialz, Website Security Tags: Common Security, Critical Web, Cyber Security, Example Web, Html Page, Input Data, Open Web, Owasp, Proper Html, Query Parameters, Security Problems, Security Project, Security Vulnerabilities, Swingset, Top Ten Security, Web Application Security, Web Applications, Webgoat, Writeln, xss
Hello ,
below is some links to crack md5 password hashes online , i will keep this post updated with all online links for cracking md5.
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Categories: Database Security, Linux, Password Recovery, Servers, Tutorialz, Website Security Tags: cheatsheet, database, db, hack, hacked, hacking, linux, mysql, passwd, security, unix, web, web security, windows
1. Cross site scripting (XSS)
The problem: The “most prevalent and pernicious” Web application security vulnerability, XSS flaws happen when an application sends user data to a Web browser without first validating or encoding the content. This lets hackers execute malicious scripts in a browser, letting them hijack user sessions, deface Web sites, insert hostile content and conduct phishing and malware attacks.
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Categories: Database Security, Linux, Servers, Tutorialz, Website Security Tags: database, DOS, hack, hacked, hacking, javascript, MSSQL, mysql, network, networking, password, permission, security, sql injection
JavaScript Injection Overview
JavaScript is a widely used technology within websites and web based applications. JavaScript can be used for all sorts of useful things and functions. But along with this comes some additional security issues that need to be thought of and tested for. JavaScript can be used not only for good purposes, but also for malicious purposes.
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Categories: Servers, Website Security Tags: browser, cross site scripting, firefox, hacked, hacking, injection, java, javascript, javascript injection, js, web, web security, xss
Currently only for MySQL and Microsoft SQL Server. Most of the samples are not correct for every single situation. Most of the real world environments may change because of parenthesis, different code bases and SQL sentences.
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Categories: Database Security, Website Security Tags: cheatsheet, database, db, hacked, hacking, microsoft, MSSQL, mysql, network, root, security, sql, sql injection, sql server