USN-1680-1: MoinMoin vulnerabilities

Ubuntu Security Notice USN-1680-1

29th December, 2012

moin vulnerabilities

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

Summary

MoinMoin could be made to run programs and overwrite files.

Software description

  • moin - Collaborative hypertext environment

Details

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.

Update instructions

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 1.9.3-1ubuntu1.11.10.2
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.

References

LP: 1094599