Windows Exploitation Techniques: Winning Race Conditions with Path Lookups

Posted by James Forshaw This post was originally written in 2016 for the Project Zero blog. However, in the end it was published separately in the journal PoC||GTFOissue 13 as well as in the second volume of the printed version. In honor of our new blog we’re republishing it on this blog and...

On the Effectiveness of Mutational Grammar Fuzzing

Posted by Ivan Fratric Mutational grammar fuzzing is a fuzzing technique in which the fuzzer uses a predefined grammar that describes the structure of the samples. When a sample gets mutated, the mutations happen in such a way that any resulting samples still adhere to the grammar rules, thus the...

A 0-click exploit chain for the Pixel 9 Part 2: Cracking the Sandbox with a Big Wave

Posted by Seth Jenkins With the advent of a potential Dolby Unified Decoder RCE exploit, it seemed prudent to see what kind of Linux kernel drivers might be accessible from the resulting userland context, the mediacodec context. As per the AOSP documentation, the mediacodec SELinux context is...