CVE-2011-2701
Gentoo Linux Security Advisory 201311-09
Severity Score
9.8
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
La función ocsp_check de rlm_eap_tls.c de FreeRADIUS 2.1.11, si OCSP está habilitado, no analiza correctamente la sintaxis ("parse") de las respuestas de los agentes transmisores OCSP, lo que permite a atacantes remotos evitar la autenticación usando el protocolo EAP-TLS con un certificado cliente X.509 revocado.
Multiple vulnerabilities have been found in FreeRADIUS, the worst of which allow execution of arbitrary code or Denial of Service. Versions less than 2.2.0 are affected.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2011-07-11 CVE Reserved
- 2011-08-04 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| http://securityreason.com/securityalert/8325 | Third Party Advisory | |
| http://securitytracker.com/id?1025833 | 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://www.openwall.com/lists/oss-security/2011/07/20/9 | Mailing List |
|
| http://www.securityfocus.com/archive/1/518974/100/0/threaded | Mailing List | |
| http://www.securityfocus.com/bid/48880 | Vdb Entry | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/68782 | Vdb Entry | |
| https://www.dfn-cert.de/informationen/Sicherheitsbulletins/dsb-2011-01.html | X_refsource_misc |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=724815 | 2018-10-09 |
| URL | Date | SRC |
|---|---|---|
| http://secunia.com/advisories/45425 | 2018-10-09 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.11 Search vendor "Freeradius" for product "Freeradius" and version "2.1.11" | - |
Affected
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