SquirrelMail packages compromised

For those who did no notice it, the squirrelmail1.4.12 release had been compromised after the release.

It has been brought to our attention that the MD5 sums for the 1.4.12 package were not matching the actual package. We've been investigating this issue, and uncovered that the package was modified post release. This was believed to have been caused by a compromised account from one of our release maintainers.

Further investigations show that the modifications to the code should have little to no impact at this time. Modifications seemed to be based around a PHP global variable which we cannot track down. The changes made will most likely generate an error, rather than a compromise of a system in the event the code does get executed.......[read more]

The original MD5 sums are:
ea5e750797628c9f0f247009f8ae0e14 squirrelmail-1.4.12.tar.bz2
d17c1d9f1ee3dde2c1c21a22fc4f9d0e squirrelmail-1.4.12.tar.gz
3f6514939ea1ebf69f6f8c92781886ab squirrelmail-1.4.12.zip

Lots of people never evaluate the hash sums after downloading a tarball from some website, hope they will do so in the future, it is important to do so.

Update:

Due to the package compromise of 1.4.11, and 1.4.12, we are forced to release 1.4.13 to ensure no confusions. While initial review didn't uncover a need for concern, several proof of concepts show that the package alterations introduce a high risk security issue, allowing remote inclusion of files. These changes would allow a remote user the ability to execute exploit code on a victim machine, without any user interaction on the victim's server. This could grant the attacker the ability to deploy further code on the victim's server.

We STRONGLY advise all users of 1.4.11, and 1.4.12 upgrade immediately.