GLSA 200407-09 - MoinMoin: Group ACL bypass
Posted on: 07/11/2004 04:31 PM

A MoinMoin update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200407-09
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http://security.gentoo.org/
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Severity: Normal
Title: MoinMoin: Group ACL bypass
Date: July 11, 2004
Bugs: #53126
ID: 200407-09

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Synopsis
=======

MoinMoin contains a bug allowing a user to bypass group ACLs (Access Control Lists).

Background
=========

MoinMoin is a Python clone of WikiWiki, based on PikiPiki.

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

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Package / Vulnerable / Unaffected
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1 net-www/moinmoin <= 1.2.1 >= 1.2.2

Description
==========

MoinMoin contains a bug in the code handling administrative group ACLs. A user created with the same name as an administrative group gains the privileges of the administrative group.

Impact
=====

If an administrative group called AdminGroup existed an attacker could create a user called AdminGroup and gain the privileges of the group AdminGroup. This could lead to unauthorized users gaining administrative access.

Workaround
=========

For every administrative group with special privileges create a user with the same name as the group.

Resolution
=========

All users should upgrade to the latest available version of MoinMoin, as follows:

# emerge sync

# emerge -pv ">=net-ww/moinmoin-1.2.2"
# emerge ">=net-ww/moinmoin-1.2.2"

References
=========

[ 1 ] MoinMoin Announcement
http://sourceforge.net/tracker/index.php?func=detailaid"8103group_id=8482atid=108482
[ 2 ] OSVDB Entry
http://www.osvdb.org/6704

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

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

http://security.gentoo.org/glsa/glsa-200407-09.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 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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