- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200407-09
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: MoinMoin: Group ACL bypass
      Date: July 11, 2004
      Bugs: #53126
        ID: 200407-09

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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
================
    -------------------------------------------------------------------
     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
        ;aid=948103&group_id=8482&atid=108482
  [ 2 ] OSVDB Entry
        
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

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

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 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.

https://creativecommons.org/licenses/by-sa/1.0/