Vulnerability Details : CVE-2011-4197
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.
Exploit prediction scoring system (EPSS) score for CVE-2011-4197
Probability of exploitation activity in the next 30 days: 1.41%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 85 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2011-4197
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
CWE ids for CVE-2011-4197
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Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-4197
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https://exchange.xforce.ibmcloud.com/vulnerabilities/71969
pfSense x509 security bypass CVE-2011-4197 Vulnerability Report
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https://github.com/bsdperimeter/pfsense/commit/1379d66f11aaf72982a70287b83e24efcd18898e
Page not found · GitHub · GitHub
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http://www.securityfocus.com/bid/51169
pfSense Cross Site Scripting and Security Bypass Vulnerabilities
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http://archives.neohapsis.com/archives/bugtraq/2011-12/0152.html
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https://www.trustmatta.com/advisories/MATTA-2011-001.txt
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https://github.com/bsdperimeter/pfsense/commit/87b4deb2b2dae9013e6aa0fe490d6a5a04a27894
Page not found · GitHub · GitHub
Products affected by CVE-2011-4197
- cpe:2.3:a:pfsense:pfsense:*:*:*:*:*:*:*:*
- cpe:2.3:a:pfsense:pfsense:1.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:pfsense:pfsense:1.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:pfsense:pfsense:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:pfsense:pfsense:1.0.x:*:*:*:*:*:*:*