CVE-2011-4966
freeradius: does not respect expired passwords when using the unix module
Severity Score
8.8
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
modules/rlm_unix/rlm_unix.c in FreeRADIUS before 2.2.0, when unix mode is enabled for user authentication, does not properly check the password expiration in /etc/shadow, which allows remote authenticated users to authenticate using an expired password.
modules/rlm_unix/rlm_unix.c en FreeRADIUS anterior a v2.2.0, cuando el modo unix está activado para la autenticación de usuarios, no valida adecuadamente la expiración de la contraseña en /etc/shadow, lo que permite a usuarios autenticados remotamente validarse mediante una contraseña caducada.
It was discovered that FreeRADIUS incorrectly handled unix authentication. A remote user could successfully authenticate with an expired password. Pierre Carrier discovered that FreeRADIUS incorrectly handled rlm_pap hash processing. An authenticated user could use this issue to cause FreeRADIUS to crash, resulting in a denial of service, or possibly execute arbitrary code. The default compiler options for affected releases should reduce the vulnerability to a denial of service. Various other issues were also addressed.
*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
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2011-12-23 CVE Reserved
- 2013-03-12 CVE Published
- 2024-08-07 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-255: Credentials Management Errors
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| http://rhn.redhat.com/errata/RHBA-2012-0881.html | X_refsource_misc | |
| https://github.com/alandekok/freeradius-server/commit/1b1ec5ce75e224bd1755650c18ccdaa6dc53e605 | X_refsource_confirm |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2013-0134.html | 2013-03-19 |
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2013-01/msg00029.html | 2013-03-19 | |
| http://lists.opensuse.org/opensuse-updates/2013-01/msg00079.html | 2013-03-19 | |
| https://access.redhat.com/security/cve/CVE-2011-4966 | 2013-01-08 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=879045 | 2013-01-08 |
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" | * | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | <= 2.2.0 Search vendor "Freeradius" for product "Freeradius" and version " <= 2.2.0" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.1 Search vendor "Freeradius" for product "Freeradius" and version "0.1" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.2 Search vendor "Freeradius" for product "Freeradius" and version "0.2" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.3 Search vendor "Freeradius" for product "Freeradius" and version "0.3" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.4 Search vendor "Freeradius" for product "Freeradius" and version "0.4" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.5 Search vendor "Freeradius" for product "Freeradius" and version "0.5" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.6 Search vendor "Freeradius" for product "Freeradius" and version "0.6" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.7 Search vendor "Freeradius" for product "Freeradius" and version "0.7" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.7.1 Search vendor "Freeradius" for product "Freeradius" and version "0.7.1" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.8 Search vendor "Freeradius" for product "Freeradius" and version "0.8" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.8.1 Search vendor "Freeradius" for product "Freeradius" and version "0.8.1" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.9 Search vendor "Freeradius" for product "Freeradius" and version "0.9" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.9.0 Search vendor "Freeradius" for product "Freeradius" and version "0.9.0" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.9.1 Search vendor "Freeradius" for product "Freeradius" and version "0.9.1" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.9.2 Search vendor "Freeradius" for product "Freeradius" and version "0.9.2" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 0.9.3 Search vendor "Freeradius" for product "Freeradius" and version "0.9.3" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.0.0 Search vendor "Freeradius" for product "Freeradius" and version "1.0.0" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.0.1 Search vendor "Freeradius" for product "Freeradius" and version "1.0.1" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.0.2 Search vendor "Freeradius" for product "Freeradius" and version "1.0.2" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.0.3 Search vendor "Freeradius" for product "Freeradius" and version "1.0.3" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.0.4 Search vendor "Freeradius" for product "Freeradius" and version "1.0.4" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.0.5 Search vendor "Freeradius" for product "Freeradius" and version "1.0.5" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.0 Search vendor "Freeradius" for product "Freeradius" and version "1.1.0" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.1 Search vendor "Freeradius" for product "Freeradius" and version "1.1.1" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.2 Search vendor "Freeradius" for product "Freeradius" and version "1.1.2" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.3 Search vendor "Freeradius" for product "Freeradius" and version "1.1.3" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.4 Search vendor "Freeradius" for product "Freeradius" and version "1.1.4" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.5 Search vendor "Freeradius" for product "Freeradius" and version "1.1.5" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.6 Search vendor "Freeradius" for product "Freeradius" and version "1.1.6" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.7 Search vendor "Freeradius" for product "Freeradius" and version "1.1.7" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 1.1.8 Search vendor "Freeradius" for product "Freeradius" and version "1.1.8" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.0 Search vendor "Freeradius" for product "Freeradius" and version "2.0" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.0.1 Search vendor "Freeradius" for product "Freeradius" and version "2.0.1" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.0.2 Search vendor "Freeradius" for product "Freeradius" and version "2.0.2" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.0.3 Search vendor "Freeradius" for product "Freeradius" and version "2.0.3" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.0.4 Search vendor "Freeradius" for product "Freeradius" and version "2.0.4" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.0.5 Search vendor "Freeradius" for product "Freeradius" and version "2.0.5" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.0 Search vendor "Freeradius" for product "Freeradius" and version "2.1.0" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.1 Search vendor "Freeradius" for product "Freeradius" and version "2.1.1" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.2 Search vendor "Freeradius" for product "Freeradius" and version "2.1.2" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.3 Search vendor "Freeradius" for product "Freeradius" and version "2.1.3" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.4 Search vendor "Freeradius" for product "Freeradius" and version "2.1.4" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.6 Search vendor "Freeradius" for product "Freeradius" and version "2.1.6" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.7 Search vendor "Freeradius" for product "Freeradius" and version "2.1.7" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.8 Search vendor "Freeradius" for product "Freeradius" and version "2.1.8" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.9 Search vendor "Freeradius" for product "Freeradius" and version "2.1.9" | - |
Affected
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.10 Search vendor "Freeradius" for product "Freeradius" and version "2.1.10" | - |
Affected
| ||||||
| 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
| ||||||
| Freeradius Search vendor "Freeradius" | Freeradius Search vendor "Freeradius" for product "Freeradius" | 2.1.12 Search vendor "Freeradius" for product "Freeradius" and version "2.1.12" | - |
Affected
| ||||||