pfSense 1.0.x/1.2.1/1.2.2/1.2.3/2.0 Certificates access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability has been found in pfSense 1.0.x/1.2.1/1.2.2/1.2.3/2.0 (Firewall Software) and classified as critical. This vulnerability affects an unknown functionality of the component Certificates. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was disclosed 01/03/2012 by Florent Daigniere with Matta Consulting (Website). The advisory is shared for download at trustmatta.com. This vulnerability was named CVE-2011-4197 since 10/26/2011. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 1.2.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (71969). The entry 59873 is pretty similar.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: pfSense 1.2.2
Patch: github.com

Timelineinfo

10/26/2011 🔍
12/22/2011 +57 days 🔍
12/22/2011 +0 days 🔍
01/03/2012 +12 days 🔍
01/03/2012 +0 days 🔍
03/23/2015 +1175 days 🔍
11/28/2021 +2442 days 🔍

Sourcesinfo

Advisory: 1379d66f11aaf72982a70287b83e24efcd18898e
Researcher: Florent Daigniere
Organization: Matta Consulting
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-4197 (🔍)
X-Force: 71969
SecurityFocus: 51169 - pfSense Cross Site Scripting and Security Bypass Vulnerabilities
Secunia: 46780 - pfSense Security Issue and Multiple Vulnerabilities, Less Critical
OSVDB: 77982

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/28/2021 16:24
Changes: 03/23/2015 16:50 (57), 02/13/2019 10:54 (5), 11/28/2021 16:24 (4)
Complete: 🔍

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