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Java Deserialization: Running Faster Than a Bear
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weekstweets
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weekstweets,
User Rank: Author
4/15/2016 | 12:41:17 PM
All you wanted to know about deserialization and more
There is another great post on SlideShare describing deserialization issues, including how to find them, what to look for, tricks, how to exploit them, and the history of deserialization vulnerabilities: http://www.slideshare.net/codewhitesec/java-deserialization-vulnerabilities-the-forgotten-bug-class

 
weekstweets
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weekstweets,
User Rank: Author
4/15/2016 | 12:38:10 PM
Identifying components subject to this vulnerability
This blog post by Brian Fox helps describe more about the issues with open source components that are subject to deserialization vulnerabilities.  Well worth reading: http://www.sonatype.org/nexus/2015/11/13/did-you-wake-up-to-an-alert-about-the-java-deserialization-vulnerability/
planetlevel
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planetlevel,
User Rank: Author
4/14/2016 | 8:57:31 PM
Bad strategy?
The fundamental problem here is deserializing untrusted data, not sour components. There are probably an infinite number of gadgets (like the Commons Collection library mentioned) that can be used, so the component strategy is busted. Better solutions use instrumentation like Contrast-rO0 and other free tools.


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