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.
References
- 51169 vdb-entry
- https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894
- https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e
- 20111222 [MATTA-2011-001] pfSense x509 Insecure Certificate Creation mailing-list
- https://www.trustmatta.com/advisories/MATTA-2011-001.txt
- pfsense-x509-security-bypass(71969) vdb-entry
- 77982 vdb-entry
- 46780 third-party-advisory