CVE-2011-4122 Information

Description

Directory traversal vulnerability in openpam_configure.c in OpenPAM before r478 on FreeBSD 8.1 allows local users to load arbitrary DSOs and gain privileges via a .. (dot dot) in the service_name argument to the pam_start function as demonstrated by a .. in the -c option to kcheckpass.

Reference

http://c-skills.blogspot.com/2011/11/openpam-trickery.html http://openwall.com/lists/oss-security/2011/12/07/3 http://openwall.com/lists/oss-security/2011/12/08/9 http://osvdb.org/76945 http://secunia.com/advisories/46756 http://secunia.com/advisories/46804 http://stealth.openwall.net/xSports/pamslam http://trac.des.no/openpam/changeset/478/trunk/lib/openpam_configure.c https://exchange.xforce.ibmcloud.com/vulnerabilities/71205