Re: HIPS Buffer Overflow Protection - Bypass

[<dfullerton@mantor.org>]

Bart,

Basically this means that this HIPS does not detect nor protect against this 
buffer overflow. Looks like the only thing detected by the IPS was the 
different Metasploit payload except the “adduser” one (the actual shellcode 
signature). Consequently, we can say that any custom payload would go 
undetected. Signature-based recognition is one part of the whole detection 
picture and looks like this IPS can’t do much in others portions of 
detection/prevention for this vulnerability such as stack protection (write and 
execution of stack memory segment) and heuristic.

Danny Fullerton
IT security Specialist
Mantor Organization

___________________________________
NOCC, http://nocc.sourceforge.net



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