National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-2701 Detail

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.

Source:  MITRE
Description Last Modified:  08/03/2011

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://securityreason.com/securityalert/8325
http://securitytracker.com/id?1025833
http://www.openwall.com/lists/oss-security/2011/07/15/6
http://www.openwall.com/lists/oss-security/2011/07/18/2
http://www.openwall.com/lists/oss-security/2011/07/20/9
http://www.securityfocus.com/archive/1/archive/1/518974/100/0/threaded
http://www.securityfocus.com/bid/48880
https://bugzilla.redhat.com/show_bug.cgi?id=724815 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/68782
https://www.dfn-cert.de/informationen/Sicherheitsbulletins/dsb-2011-01.html

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:freeradius:freeradius:2.1.11:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-2701
NVD Published Date:
08/03/2011
NVD Last Modified:
08/28/2017