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Showing posts from November, 2012

Java Exploit Code Obfuscation and Antivirus Bypass/Evasion (CVE-2012-4681)

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Why not play a game where we try to make the latest (at time of writing) public java exploit ( CVE-2012-4681 ) undetected by all antivirus and see who will be the last to detect it ?. I think it will be a funny "challenge" because evading antivirus has always his charm. I will not use software obfuscators like proGuard, Allatori, Zelix KlassMaster etc... This because will not be funny. This is not intended to be an analysis or explanation because there are already great post here: http://immunityproducts.blogspot.com.ar/2012/08/java-0day-analysis-cve-2012-4681.html http://www.deependresearch.org/2012/08/java-7-vulnerability-analysis.html http://www.h-online.com/security/features/The-new-Java-0day-examined-1677789.html Before we start we need to make two considerations: From The Current Web-Delivered Java 0Day :  So while you may see a few links to Virustotal with the inevitable complaining that a scanner is missing a specific chunk of altered code along with innacc

Wordpress Cookie Grabber

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In a previous video  Wordpress XSS + Internet Explorer 8 Exploit  i showed you how you can use a Cross-site scripting vulnerability to redirect a victim with Internet Explorer to a malicious site containing an exploit for version 8. Another way, is to use it as cookie grabber. From wikipedia: A cookie, also known as an HTTP cookie, web cookie, or browser cookie, is usually a small piece of data sent from a website and stored in a user's web browser while a user is browsing a website. When the user browses the same website in the future, the data stored in the cookie can be retrieved by the website to notify the website of the user's previous activity. Basically, when a user visit the "infected" page all cookies of that domain will be sent to a script which will store informations in a file/db or sent via email to the attacker. After selecting our wordpress target (franksite.dot/wordpress) we use a vulnerability scanner called wpscan developed by ethicalhack3r