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Novell Client NWFILTER.SYS Privilege Escalation Vulnerability
Secunia Advisory: SA27678
Release Date: 2007-11-13
Last Update: 2008-11-17
Popularity: 8,724 views

Critical:
Less critical
Impact: Privilege escalation
Where: Local system
Solution Status: Vendor Patch

Software:Novell Client for Windows NT/2000/XP 4.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
A vulnerability has been reported in Novell Client, which can be exploited by malicious, local users to gain escalated privileges.

Insufficient address space verification within the IOCTL handlers of the NWFILTER.SYS device driver and insecure permissions on the "\.\nwfilter" device can be exploited e.g. to access certain IOCTL handlers and overwrite arbitrary memory, and execute code with kernel privileges.

The vulnerability affects version 4.91 Support Pack 1 to Support Pack 4 and is reported in nwfilter.sys in file version 4.91.1.1.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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