National Cyber-Alert System
Vulnerability Summary for CVE-2006-5215
Original release date:10/10/2006
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
The Xsession script, as used by X Display Manager (xdm) in NetBSD before 20060212, X.Org before 20060317, and Solaris 8 through 10 before 20061006, allows local users to overwrite arbitrary files, or read another user's Xsession errors file, via a symlink attack on a /tmp/xses-$USER file.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
4.9
Exploitability Subscore:
1.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification
Solution
This vulnerability is addressed in the following product updates:
X.org, xdm, 2006-03-17
NetBSD, NetBSD, Current 2006-02-12
Sun, Solaris, 10 2006-10-06}
- Official Statement from Red Hat (03/14/2007)
-
Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: https://bugs.freedesktop.org/show_bug.cgi?id=5898
External Source: XF
Name: xdm-xsession-symlink(29427)
External Source: CONFIRM
Name: http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=32805
External Source: CONFIRM
Name: http://support.avaya.com/elmodocs2/security/ASA-2006-250.htm
External Source: SUNALERT
Name: 102652
External Source: SECTRACK
Name: 1017015
External Source: SECUNIA
Name: 22992
US Government Resource: oval:org.mitre.oval:def:2205
Name: oval:org.mitre.oval:def:2205
Type: Tool Signature