main/manager.c in the Manager Interface in Asterisk Open Source 1.6.2.x before 1.6.2.24, 1.8.x before 1.8.11.1, and 10.x before 10.3.1 and Asterisk Business Edition C.3.x before C.3.7.4 does not properly enforce System class authorization requirements, which allows remote authenticated users to execute arbitrary commands via (1) the originate action in the MixMonitor application, (2) the SHELL and EVAL functions in the GetVar manager action, or (3) the SHELL and EVAL functions in the Status manager action.
https://exchange.xforce.ibmcloud.com/vulnerabilities/75100
http://www.securitytracker.com/id?1026961
http://www.securityfocus.com/bid/53206
http://www.debian.org/security/2012/dsa-2460
http://secunia.com/advisories/48941
http://secunia.com/advisories/48891
http://lists.fedoraproject.org/pipermail/package-announce/2012-May/079759.html
http://downloads.asterisk.org/pub/security/AST-2012-004.html