PT-2012-1821 · Netgate · Pfsense

Published 2012-01-03 · Updated 2017-08-29 · CVE-2011-4197

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions pfSense versions prior to 2.0.1

Description The issue is related to the PKI implementation in pfSense, where the etc/inc/certs.inc file creates X.509 certificates with a true value for the CA basic constraint. This allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.

Recommendations For versions prior to 2.0.1, update to version 2.0.1 or later to resolve the issue.

Fix

Weakness Enumeration

CWE-264

Related Identifiers

CVE-2011-4197

Affected Products

Pfsense

References · 9

• http://secunia.com/advisories/46780 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-4197 · Security Note
• ❌ https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894 · Note, Deleted
• https://trustmatta.com/advisories/MATTA-2011-001.txt · Note
• ❌ https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e · Note, Deleted
• http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html · Note
• http://osvdb.org/77982 · Note
• http://securityfocus.com/bid/51169 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/71969 · Note