Terascale Open-Source Resource and Queue Manager (aka TORQUE Resource Manager) 3.0.1 and earlier allows remote attackers to bypass host-based authentication and submit arbitrary jobs via a modified PBS_O_HOST variable to the qsub program.
https://wiki.egi.eu/wiki/SVG:Advisory-SVG-2011-2296
https://exchange.xforce.ibmcloud.com/vulnerabilities/69138
https://bugzilla.redhat.com/show_bug.cgi?id=713090
http://www.securityfocus.com/bid/49119
http://www.openwall.com/lists/oss-security/2011/08/11/1
http://www.clusterresources.com/pipermail/torqueusers/2011-August/013194.html