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Gentoo Linux Security Advisory                           GLSA 201006-09
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                                            https://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:

  https://security.gentoo.org/glsa/201006-09

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.

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