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Gentoo Linux Security Advisory                           GLSA 200907-15
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Nagios: Execution of arbitrary code
      Date: July 19, 2009
      Bugs: #245887, #249876, #275288
        ID: 200907-15

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Synopsis
========

Multiple vulnerabilities in Nagios may lead to the execution of
arbitrary code.

Background
==========

Nagios is an open source host, service and network monitoring program.

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

    -------------------------------------------------------------------
     Package                   /  Vulnerable  /             Unaffected
    -------------------------------------------------------------------
  1  net-analyzer/nagios-core     < 3.0.6-r2               >= 3.0.6-r2

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

Multiple vulnerabilities have been reported in Nagios:

* Paul reported that statuswml.cgi does not properly sanitize shell
  metacharacters in the (1) ping and (2) traceroute parameters
  (CVE-2009-2288).

* Nagios does not properly verify whether an authenticated user is
  authorized to run certain commands (CVE-2008-5027).

* Andreas Ericsson reported that Nagios does not perform validity
  checks to verify HTTP requests, leading to Cross-Site Request Forgery
  (CVE-2008-5028).

* An unspecified vulnerability in Nagios related to CGI programs,
  "adaptive external commands," and "writing newlines and
 submitting
  service comments" has been reported (CVE-2008-6373).

Impact
======

A remote authenticated or unauthenticated attacker may exploit these
vulnerabilities to execute arbitrary commands or elevate privileges.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Nagios users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot -v
 ">=net-analyzer/nagios-core-3.0.6-r2"

NOTE: Users of the Nagios 2 branch can update to version 2.12-r1 which
contains a patch to fix CVE-2009-2288. However, that branch is not
supported upstream or in Gentoo and we are unaware whether the other
vulnerabilities affect 2.x installations.

References
==========

  [ 1 ] CVE-2008-5027
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5027
  [ 2 ] CVE-2008-5028
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5028
  [ 3 ] CVE-2008-6373
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-6373
  [ 4 ] CVE-2009-2288
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2288

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

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

  http://security.gentoo.org/glsa/glsa-200907-15.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 2009 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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