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Gentoo Linux Security Advisory                           GLSA 200408-25
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  Severity: Normal
     Title: MoinMoin: Group ACL bypass
      Date: August 26, 2004
      Bugs: #57913
        ID: 200408-25

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Synopsis
========

MoinMoin contains a bug allowing anonymous users to bypass ACLs (Access
Control Lists) and carry out operations that should be limited to
authorized users.

Background
==========

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

Affected packages
=================

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  net-www/moinmoin      <= 1.2.2                           >= 1.2.3

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

MoinMoin contains two unspecified bugs, one allowing anonymous users
elevated access when not using ACLs, and the other in the ACL handling
in the PageEditor.

Impact
======

Restrictions on anonymous users were not properly enforced. This could
lead to unauthorized users gaining administrative access to functions
such as "revert" and "delete". Sites are vulnerable whether or not they
are using ACLs.

Workaround
==========

There is no known workaround.

Resolution
==========

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

    # emerge sync

    # emerge -pv ">=net-ww/moinmoin-1.2.3"
    # emerge ">=net-ww/moinmoin-1.2.3"

References
==========

  [ 1 ] MoinMoin Announcement
        https://sourceforge.net/project/shownotes.php?group_id=8482&release_id=254801
  [ 2 ] OSVDB Advisory 8194
        http://www.osvdb.org/displayvuln.php?osvdb_id=8194
  [ 3 ] OSVDB Advisory 8195
        http://www.osvdb.org/displayvuln.php?osvdb_id=8195

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

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

  http://security.gentoo.org/glsa/glsa-200408-25.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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