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TUCoPS :: Linux :: Gentoo :: hack0429.htm

Horde-Chora: Remote code execution GLSA 200406-09



[ GLSA 200406-09 ] Horde-Chora: Remote code execution

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Gentoo Linux Security Advisory                           GLSA 200406-09
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                                            http://security.gentoo.org/ 
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  Severity: High
     Title: Horde-Chora: Remote code execution
      Date: June 15, 2004
      Bugs: #53800
        ID: 200406-09

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Synopsis
========

A vulnerability in Chora allows remote code execution and file upload.

Background
==========

Chora is a PHP-based SVN/CVS repository viewer by the HORDE project.

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

    -------------------------------------------------------------------
     Package              /   Vulnerable   /                Unaffected
    -------------------------------------------------------------------
  1  net-www/horde-chora        < 1.2.2                       >= 1.2.2

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

A vulnerability in the diff viewer of Chora allows an attacker to
inject shellcode. An attacker can exploit PHP's file upload
functionality to upload a malicious binary to a vulnerable server,
chmod it as executable, and run the file.

Impact
======

An attacker could remotely execute arbitrary binaries with the
permissions of the PHP script, conceivably allowing further
exploitation of local vulnerabilities and remote root access.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All users are advised to upgrade to the latest version of Chora:

    # emerge sync

    # emerge -pv ">=net-www/horde-chora-1.2.2"
    # emerge ">=net-www/horde-chora-1.2.2"

References
==========

  [ 1 ] e-matters Advisory
        http://security.e-matters.de/advisories/102004.html 

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

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

     http://security.gentoo.org/glsa/glsa-200406-09.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 
http://bugs.gentoo.org. 

License
=======

Copyright 2004 Gentoo Technologies, 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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