MoinMoin: Group ACL bypass

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.

Workaround

There is no known workaround.

Resolution

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

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