CVE-2011-5239: Input Validation
First published: Tue Nov 06 2012(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CiviCRM | =4.1.1 | |
| CiviCRM | =4.0.5 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2011-5239?
CVE-2011-5239 has a medium severity rating due to its potential impact on SSL certificate validation.
How do I fix CVE-2011-5239?
To fix CVE-2011-5239, upgrade CiviCRM to version 4.1.2 or later, which includes the necessary security updates.
What systems are affected by CVE-2011-5239?
CVE-2011-5239 affects CiviCRM versions 4.0.5 and 4.1.1.
What type of attack does CVE-2011-5239 allow?
CVE-2011-5239 allows man-in-the-middle attackers to spoof SSL servers using valid certificates.
Is there a workaround for CVE-2011-5239?
There is no specific workaround for CVE-2011-5239; updating to the latest version is recommended.
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