* [gentoo-announce] [ GLSA 200506-22 ] sudo: Arbitrary command execution
@ 2005-06-23 7:26 99% Sune Kloppenborg Jeppesen
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From: Sune Kloppenborg Jeppesen @ 2005-06-23 7:26 UTC (permalink / raw
To: gentoo-announce; +Cc: bugtraq, full-disclosure, security-alerts
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Gentoo Linux Security Advisory GLSA 200506-22
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http://security.gentoo.org/
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Severity: Normal
Title: sudo: Arbitrary command execution
Date: June 23, 2005
Bugs: #96618
ID: 200506-22
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Synopsis
========
A vulnerability in sudo may allow local users to elevate privileges.
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 < 1.6.8_p9 >= 1.6.8_p9
Description
===========
The sudoers file is used to define the actions sudo users are permitted
to perform. Charles Morris discovered that a specific layout of the
sudoers file could cause the results of an internal check to be
clobbered, leaving sudo vulnerable to a race condition.
Impact
======
Successful exploitation would permit a local sudo user to execute
arbitrary commands as another user.
Workaround
==========
Reorder the sudoers file using the visudo utility to ensure the 'ALL'
pseudo-command precedes other command definitions.
Resolution
==========
All sudo users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/sudo-1.6.8_p9"
References
==========
[ 1 ] Sudo Announcement
http://www.sudo.ws/sudo/alerts/path_race.html
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200506-22.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
http://bugs.gentoo.org.
License
=======
Copyright 2005 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/2.0
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