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

[pahud]

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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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