01 Record
CVE-2011-2701
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
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.84% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 78.8% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-08-04 01:00Z15 YR AGO
- Last updated
- 2024-08-06 23:08Z2 YR AGO
- Reserved
- 2011-07-11
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-287Improper AuthenticationClass
- Data version
- 5.1
- Document digest
- f075040032906d1bf26abe0b61f68a59d7fe020a11115ef692f86fc80923fa18
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.securityfocus.com48880http://www.securityfocus.com/bid/48880
- exchange.xforce.ibmcloud.comfreeradius-certificate-security-bypass(68782)https://exchange.xforce.ibmcloud.com/vulnerabilities/68782
- www.openwall.com[oss-security] 20110715 CVE request: vulnerability in FreeRADIUS (OCSP)http://www.openwall.com/lists/oss-security/2011/07/15/6
- www.openwall.com[oss-security] 20110718 Re: CVE request: vulnerability in FreeRADIUS (OCSP)http://www.openwall.com/lists/oss-security/2011/07/18/2
- secunia.com45425http://secunia.com/advisories/45425
- www.securityfocus.com20110725 [DSB-2011-01] Security Advisory FreeRADIUS 2.1.11http://www.securityfocus.com/archive/1/518974/100/0/threaded
- www.dfn-cert.dehttps://www.dfn-cert.de/informationen/Sicherheitsbulletins/dsb-2011-01.html
- securityreason.com8325http://securityreason.com/securityalert/8325
- securitytracker.com1025833http://securitytracker.com/id?1025833
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=724815
- www.openwall.com[oss-security] 20110720 Re: CVE request: vulnerability in FreeRADIUS (OCSP)http://www.openwall.com/lists/oss-security/2011/07/20/9