pfSense up to 2.0 Certificates access control

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in pfSense 1.0.x/1.2.1/1.2.2/1.2.3/2.0. Affected is an unknown function of the component Certificates. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2011-4197. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

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 databases at X-Force (71969), SecurityFocus (BID 51169†), OSVDB (77982†) and Secunia (SA46780†). The entry VDB-59873 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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 (🔍)
GCVE (CVE): GCVE-0-2011-4197
GCVE (VulDB): GCVE-100-59872
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: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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