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CVE-2011-5239

UnknownEPSS 0.53%

Last modified

CVE-2011-5239 is a vulnerability of currently unknown severity. CiviCRM 4.0.5 and 4.1.1 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

CiviCRM 4.0.5 and 4.1.1 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Metrics

EPSS Probability
0.53%

40.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CivicrmCivicrm4.0.5
CivicrmCivicrm4.1.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-5239?
CiviCRM 4.0.5 and 4.1.1 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
How severe is CVE-2011-5239?
Severity scoring for CVE-2011-5239 is pending analysis. The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2011-5239?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-5239?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST