The Trigger plugin in bcfg2 1.2.x before 1.2.3 allows remote attackers with root access to the client to execute arbitrary commands via shell metacharacters in the UUID field to the server process (bcfg2-server).
https://github.com/Bcfg2/bcfg2/commit/a524967e8d5c4c22e49cd619aed20c87a316c0be
https://exchange.xforce.ibmcloud.com/vulnerabilities/76616
http://www.securityfocus.com/bid/54217
http://www.debian.org/security/2012/dsa-2503
http://secunia.com/advisories/49690
http://secunia.com/advisories/49629
http://permalink.gmane.org/gmane.comp.sysutils.bcfg2.devel/4539