Vulnerability Details CVE-2011-4197
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 74.4%
CVSS Severity
CVSS v2 Score 7.5
References
- 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
- 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
Products affected by CVE-2011-4197
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cpe:2.3:a:pfsense:pfsense:-
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cpe:2.3:a:pfsense:pfsense:1.0.x
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cpe:2.3:a:pfsense:pfsense:1.2
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cpe:2.3:a:pfsense:pfsense:1.2.1
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cpe:2.3:a:pfsense:pfsense:1.2.2
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cpe:2.3:a:pfsense:pfsense:1.2.3