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Cain & Abel PSK Sniffer Heap overflow
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SUMMARY
" <http://www.oxid.it/cain.html> Cain & Abel is a password recovery tool
for Microsoft Operating Systems. It allows easy recovery of various kind
of passwords by sniffing the network, cracking encrypted passwords using
Dictionary, Brute-Force and Cryptanalysis attacks, recording VoIP
conversations, decoding scrambled passwords, revealing password boxes and
analyzing routing protocols."
An exploitable heap overflow was identified within the Pre-Shared
Keys(PSK) Sniffer which could lead to arbitrary code execution.
DETAILS
Vulnerable Systems:
* Cain & Abel version 2.65
Immune Systems:
* Cain & Abel version 2.66
By sending a large 'ID' parameter within the Internet Key Exchange(IKE)
packet it is possible to overwrite critical portions of the heap which
could lead to remote code execution or a denial of service condition. Its
possible to exploit this vulnerability by overwriting the pointer to
RtlEnterCriticalSection().
Disclosure Timeline:
* 15.03.05 - Reported to vendor.
* 16.03.05 - Immune version released, download it
<http://www.oxid.it/cain.html> here.
ADDITIONAL INFORMATION
The information has been provided by <mailto:garyo@sec-1.com> Gary
O'leary-Steele.
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