CVE-2011-4197 Information

Description

etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.

Reference

http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html http://secunia.com/advisories/46780 http://www.osvdb.org/77982 http://www.securityfocus.com/bid/51169 https://exchange.xforce.ibmcloud.com/vulnerabilities/71969 https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894 https://www.trustmatta.com/advisories/MATTA-2011-001.txt