CVE-2011-4197

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.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 0.90% Top 30%
Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2011-4197?
CVE-2011-4197 has been scored as a high severity vulnerability.
How to fix CVE-2011-4197?
To fix CVE-2011-4197, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-4197 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-4197 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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