CVE-2011-2701 Auth bypass in n/a
Remote attackers can bypass authentication using revoked certificates if OCSP is enabled in FreeRADIUS, allowing unauthorized network access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2011-2701?
CVE-2011-2701 is a medium-severity authentication bypass vulnerability in n/a, published on 4 Aug 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-287
Which versions are affected by CVE-2011-2701?
It affects 1 product.
Products include Freeradius Freeradius.
How do I fix CVE-2011-2701?
No fix has been published for CVE-2011-2701 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2011-2701 being exploited?
There is no known exploitation of CVE-2011-2701 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-3m7r-w3xm-qwcj.