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Netsikker nu! 2008
 
ChironFS File Creation Incorrect Ownership Vulnerability
Secunia Advisory: SA26943
Release Date: 2007-09-24
Last Update: 2007-09-28
Popularity: 2,768 views

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

Software:ChironFS 1.x

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CVE reference:CVE-2007-5101


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

The vulnerability is caused due to ChironFS not correctly setting the file ownership if a user created files on a ChironFS file system that was mounted by another user, which can be exploited to e.g. gain escalated privileges by creating malicious files.

The vulnerability is reported in versions prior to 1.0 RC7.

Solution:
Update to version 1.0 RC7.

Provided and/or discovered by:
Neal Becker

Changelog:
2007-09-28: Added CVE reference.

Original Advisory:
http://code.google.com/p/chironfs/issues/detail?id=6
http://furquim.org/chironfs/Changelog.html


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