CVE-2011-2701

Description

The ocsp_check function in rlm_eap_tls.c in FreeRADIUS 2.1.11, when OCSP is enabled, does not properly parse replies from OCSP responders, which allows remote attackers to bypass authentication by using the EAP-TLS protocol with a revoked X.509 client certificate.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.88% Top 30%
Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/48880 vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/68782 vdb entry
http://www.openwall.com/lists/oss-security/2011/07/15/6 mailing list
http://www.openwall.com/lists/oss-security/2011/07/18/2 mailing list
http://secunia.com/advisories/45425 third party advisory vendor advisory
http://www.securityfocus.com/archive/1/518974/100/0/threaded mailing list
https://www.dfn-cert.de/informationen/Sicherheitsbulletins/dsb-2011-01.html
http://securityreason.com/securityalert/8325 third party advisory
http://securitytracker.com/id?1025833 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=724815 patch
http://www.openwall.com/lists/oss-security/2011/07/20/9 mailing list

Frequently Asked Questions

What is the severity of CVE-2011-2701?
CVE-2011-2701 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2701?
To fix CVE-2011-2701, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-2701 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-2701 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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