Secunia CSI7
Advisories
Research
Forums
Create Profile
Our Commitment
Database
Search
Advisories by Product
Advisories by Vendor
Terminology
Report Vulnerability
Insecure Library Loading
Less critical

Novell Client NWFILTER.SYS Privilege Escalation Vulnerability

-

Release Date:  2007-11-13    Last Update:  2008-11-17    Views:  13,132

Secunia Advisory SA27678

Where:

Local system

Impact:

Privilege escalation

Solution Status:

Vendor Patch

CVE Reference(s):

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.


Solution:
Update to version 4.91 Support Pack 5.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Stephen Fewer of Harmony Security, reported via iDefense Labs.

Original Advisory:
Novell:
http://www.novell.com/support/viewContent.do?externalId=3260263
http://www.novell.com/support/viewContent.do?externalId=7000668

iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=626

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Novell Client NWFILTER.SYS Privilege Escalation Vulnerability

No posts yet

-

You must be logged in to post a comment.



 Products Solutions Customers Partner Resources Company
 
 Corporate
Vulnerability Intelligence Manager (VIM)
Corporate Software Inspector (CSI)
Consumer
Personal Software Inspector (PSI)
Online Software Inspector (OSI)
 Industry
Compliance
Technology
Integration
 Customers
Testimonials
 VARS
MSSP
Technology Partners
References
 Factsheets
Reports
Webinars
Events
 About us
Careers
Memberships
Newsroom


 
© 2002-2014 Secunia ApS - Rued Langgaards Vej 8, 4th floor, DK-2300 Copenhagen, Denmark - +45 7020 5144
Terms & Conditions and Copyright - Privacy - Report Vulnerability