National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-4197 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html
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

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:pfsense:pfsense:1.0.x:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:pfsense:pfsense:1.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:pfsense:pfsense:1.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:pfsense:pfsense:1.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:pfsense:pfsense:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.0


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-4197
NVD Published Date:
01/03/2012
NVD Last Modified:
08/28/2017