Vulnerability Monitor

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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.

Published

2012-01-03T19:55:03.560

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-264

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	pfsense	pfsense	≤ 2.0	Yes
Application	pfsense	pfsense	1.0.x	Yes
Application	pfsense	pfsense	1.2.1	Yes
Application	pfsense	pfsense	1.2.2	Yes
Application	pfsense	pfsense	1.2.3	Yes

References

http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html ([email protected])
http://secunia.com/advisories/46780 Vendor Advisory ([email protected])
http://www.osvdb.org/77982 ([email protected])
http://www.securityfocus.com/bid/51169 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/71969 ([email protected])
https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e ([email protected])
https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894 ([email protected])
https://www.trustmatta.com/advisories/MATTA-2011-001.txt ([email protected])
http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/46780 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/77982 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/51169 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/71969 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894 (af854a3a-2127-422b-91ae-364da2661108)
https://www.trustmatta.com/advisories/MATTA-2011-001.txt (af854a3a-2127-422b-91ae-364da2661108)