OSSIM 4.0.2 open-source SIEM solution does not verify .deb signatures

[roman.fiedler () ait ac at]

It seems that OSSIM does not check the signature when running apt updates via network. This would allow MITM attackers 
to install arbitrary code when updating OSSIM. The issue seems to be already known for some time although there is no 
confirmation from the company AlienVault behind it. So it might be, that only the non-commercial version is affected.

See 
http://forums.alienvault.com/discussion/512/looking-for-confirmation-of-security-issue-mitm-might-execute-arbitrary-code-on-ossim-during-update