[ GLSA 200408-11 ] Nessus: "adduser" race condition vulnerability

[Sune Kloppenborg Jeppesen <jaervosz () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200408-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Nessus: "adduser" race condition vulnerability
      Date: August 12, 2004
      Bugs: #58014
        ID: 200408-11

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Synopsis
========

Nessus contains a vulnerability allowing a user to perform a privilege
escalation attack.

Background
==========

Nessus is a free and powerful network security scanner.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  net-analyzer/nessus      <= 2.0.11                      >= 2.0.12

Description
===========

A race condition can occur in "nessus-adduser" if the user has not
configured their TMPDIR variable.

Impact
======

A malicious user could exploit this bug to escalate privileges to the
rights of the user running "nessus-adduser".

Workaround
==========

There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version of Nessus.

Resolution
==========

All Nessus users should upgrade to the latest version:

    # emerge sync

    # emerge -pv ">=net-analyzer/nessus-2.0.12"
    # emerge ">=net-analyzer/nessus-2.0.12"

References
==========

  [ 1 ] Secunia Advisory
        http://secunia.com/advisories/12127/

Availability
============

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

    http://security.gentoo.org/glsa/glsa-200408-11.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 2004 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/1.0
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