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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
-------------------------------------------------------------------
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=detail&aid=948103&group_id=8482&atid=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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