Summary:

CylantSecure is a kernel patch and system that analyses behavior and kills
programs that deviates from the "normal" system behaviour. The
vulnerability lies in the processessing delay that occurs between a process
violating some security rule and the actual killing of the process (a user
space analyser). By inserting a module (which in itself is a violation, but
due to the mentioned delay it suceeds) that reroutes function pointers the
system can effectively be disabled. The vulnerability exists in
CylantSecure 1.1 and earlier (the Cylant Team has been notified and is
working on a fix).

Attached is an exploit for this vulnerability.

Juergen Pabel
juergenpabel.net

• text/x-c attachment: moduleloader.c

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