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[gentoo-announce] [ GLSA 201006-09 ] sudo: Privilege escalation

Posted on 01 June 2010
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201006-09
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http://security.gentoo.org/
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Severity: High
Title: sudo: Privilege escalation
Date: June 01, 2010
Bugs: #321697
ID: 201006-09

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Synopsis
========
A flaw in sudo's -e option may allow local attackers to execute
arbitrary commands.

Background
==========
sudo allows a system administrator to give users the ability to run
commands as other users.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-admin/sudo < 1.7.2_p6 >= 1.7.2_p6

Description
===========
The command matching functionality does not properly handle when a file
in the current working directory has the same name as a pseudo-command
in the sudoers file and the PATH contains an entry for ".".

Impact
======
A local attacker with the permission to run sudoedit could, under
certain circumstances, execute arbitrary commands as whichever user he
has permission to run sudoedit as, typically root.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All sudo users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/sudo-1.7.2_p6"

References
==========
[ 1 ] CVE-2010-1163
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1163

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201006-09.xml

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2010 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5


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