Ubuntu Security Notice USN-1680-1
29th December, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
MoinMoin could be made to run programs and overwrite files.
- moin - Collaborative hypertext environment
It was discovered that MoinMoin did not properly sanitize its input when
processing AnyWikiDraw and TWikiDraw actions. A remote attacker with write
access could exploit this to overwrite arbitrary files and execute
arbitrary code with the priviliges of the web server (user 'www-data').
It was discovered that MoinMoin also did not properly sanitize its input
when processing the AttachFile action. A remote attacker could exploit
this to overwrite files via directory traversal.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.10:
- python-moinmoin 1.9.3-1ubuntu3.1
- Ubuntu 12.04 LTS:
- python-moinmoin 1.9.3-1ubuntu2.2
- Ubuntu 11.10:
- python-moinmoin 1.9.3-1ubuntu188.8.131.52
- Ubuntu 10.04 LTS:
- python-moinmoin 1.9.2-2ubuntu3.3
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.