Vulnerability Note VU#737204
Xsan Filesystem fails to properly process path names
OverviewA buffer overflow vulnerability in Apple's Xsan product may allow a local attacker to run arbitrary code with root privileges or create a denial-of-service condition.
I. DescriptionXsan Filesystem
Xsan is a Storage Area Network (SAN) filesystem designed for use by Apple OS X and OS X Server operating systems.
The Problem
There is a buffer overflow vulnerability in the Xsan filesystem driver that may affect systems directly attached to Xsan. An authenticated user with write access to the filesystem may exploit this vulnerability by creating a file with a specially crafted path name.
II. ImpactA local, authenticated attacker may be able to execute arbitrary code with system privileges, or create a denial-of-service condition.
III. SolutionUpgrade
Apple has released Xsan Filesystem 1.4 to address this vulnerability.
Restrict Write Access
Only allowing trusted users write access to the Xsan Filesystem may mitigate this vulnerability. The Xsan Administrator's Guide has instructions on how to restrict a client to read-only access.
Systems Affected
References
http://docs.info.apple.com/article.html?artnum=304188
http://secunia.com/advisories/21551/
Credit
This vulnerability was reported by Apple, who credit Andrew Wellington of The Australian National University for reporting this vulnerability.
This document was written by Ryan Giobbi.
Other Information
| Date Public: | 2006-08-17 |
| Date First Published: | 2006-08-21 |
| Date Last Updated: | 2006-08-21 |
| CERT Advisory: | |
| CVE-ID(s): | CVE-2006-3506 |
| NVD-ID(s): | CVE-2006-3506 |
| US-CERT Technical Alerts: | |
| Metric: | 0.31 |
| Document Revision: | 24 |
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