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TITLE:
Windows Vista "CreateIpForwardEntry2()" Memory Corruption
Vulnerability

SECUNIA ADVISORY ID:
SA32791

VERIFY ADVISORY:
http://secunia.com/advisories/32791/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

OPERATING SYSTEM:
Microsoft Windows Vista
http://secunia.com/advisories/product/13223/

DESCRIPTION:
A vulnerability has been reported in Microsoft Windows Vista, which
can be exploited by malicious, local users to cause a DoS (Denial of
Service).

The vulnerability is caused due to the "CreateIpForwardEntry2()"
function not properly limiting the length of the IP address prefix of
the destination IP address passed via the "MIB_IPFORWARD_ROW2"
structure. This can be exploited to cause a buffer overflow and e.g.
crash a vulnerable system.

Successful exploitation requires that the attacker is a member of the
"Network Configuration Operators Group".

The vulnerability is reported in Microsoft Windows Vista Enterprise
(32 bit and 64 bit) and Microsoft Windows Vista Ultimate (32 bit and
64 bit). Other versions may also be affected.

SOLUTION:
Only add trusted users to the "Network Configuration Operators
Group".

PROVIDED AND/OR DISCOVERED BY:
Marius Wachtler, Michael Burgbacher, Carson Hounshell, Michael
Craggs, and Thomas Unterleitner of phion AG

ORIGINAL ADVISORY:
http://marc.info/?l=bugtraq&m=122711627932563&w=2

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