MoinMoin: Group ACL bypass

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200408-25 / MoinMoin
Release Date	August 26, 2004
Latest Revision	May 22, 2006: 02
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
www-apps/moinmoin	<= 1.2.2	>= 1.2.3	All supported architectures

Related bugreports: #57913

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.

2. Impact Information

Background

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

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.

3. Resolution Information

Workaround

There is no known workaround.

Resolution

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

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=www-apps/moinmoin-1.2.3"
# emerge ">=www-apps/moinmoin-1.2.3"

4. References

Updated August 26, 2004

Summary: This is a Gentoo Linux Security Advisory

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