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Research > Zero-Day Tracker > 20130510

Novell Client Local Elevation of Privilege Vulnerability

Date Disclosed:
5/10/2013

Date Patched:
6/3/2013

Vendor:
Novell

Affected Software:
Novell Client 4.91 SP5 IR1 for Windows XP/2003

Description:
A vulnerability exists in the kernel driver (nwfs.sys) of the Novell Client when it handles the IOCTL 0x1439EB message. This allows a local attacker to elevate their privileges to grant them the ability to execute code within the context of the kernel.

Severity:
Moderate

Code Execution:
Yes. Local code execution in the context of the kernel.

Impact:

Local Elevation of Privilege
Local attackers exploiting this vulnerability will be able to elevate their privileges to the context of the kernel. Attackers will likely leverage this to hide their presence on the compromised system.

Mitigation:
Apply the updated Novell client module.

Protection:
BeyondTrust's Retina® Network Security Scanner scans devices to detect for this vulnerability.

  • 19099 - Novell Client Integer Overflow

Links:

Status:
2013-05-10: Original Disclosure
2013-05-28: Novell security advisory released
2013-06-03: Novell security patch released

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