Home / vulnerabilities Secunia Security Advisory 45425
Posted on 27 July 2011
Source : packetstormsecurity.org Link
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TITLE:
FreeRADIUS OCSP Authentication Bypass Vulnerability
SECUNIA ADVISORY ID:
SA45425
VERIFY ADVISORY:
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http://secunia.com/advisories/45425/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=45425
RELEASE DATE:
2011-07-26
DISCUSS ADVISORY:
http://secunia.com/advisories/45425/#comments
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http://secunia.com/advisories/45425/
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DESCRIPTION:
A vulnerability has been reported in FreeRADIUS, which can be
exploited by malicious people to bypass certain security features.
The vulnerability is caused due to the OCSP implementation not
properly validating certificates, which can be exploited to
successfully authenticate using revoked certificates.
Successful exploitation requires that FreeRADIUS is configured to use
EAP-TLS with OCSP certificate validation (not default).
The vulnerability is reported in version 2.1.11.
SOLUTION:
Do not use the OCSP feature.
PROVIDED AND/OR DISCOVERED BY:
DFN-CERT
ORIGINAL ADVISORY:
https://www.dfn-cert.de/informationen/Sicherheitsbulletins/dsb-2011-01.html
OTHER REFERENCES:
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EXTENDED SOLUTION:
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EXPLOIT:
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