Vulnerability Name:

CVE-2011-4973 (CCN-89102)

Assigned:2011-05-04
Published:2011-05-04
Updated:2018-03-15
Summary:Authentication bypass vulnerability in mod_nss 1.0.8 allows remote attackers to assume the identity of a valid user by using their certificate and entering 'password' as the password.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
5.5 Medium (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.0 Medium (REDHAT CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:N)
3.0 Low (REDHAT Temporal CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-287
Vulnerability Consequences:Bypass Security
References:Source: CCN
Type: Debian Bug report logs - #729626
libapache2-mod-nss: CVE-2011-4973: FakeBasicAuth authentication bypass

Source: MITRE
Type: CNA
CVE-2011-4973

Source: CCN
Type: oss-sec Mailing List, Thu, 14 Nov 2013 23:33:54 +0100
mod_nss FakeBasicAuth authentication bypass

Source: CCN
Type: BID-63745
mod_nss Module CVE-2011-4973 Authentication Bypass Vulnerability

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1017197

Source: XF
Type: UNKNOWN
modnss-cve20114973-security-bypass(89102)

Source: MLIST
Type: Issue Tracking, Third Party Advisory
[Mod_nss-list] 20110504 Problem 2

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2011-4973

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mod_nss_project:mod_nss:1.0.8:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:6:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:6::client:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:6::computenode:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:6::server:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:6::workstation:*:*:*:*:*

    • Configuration RedHat 6:
  • cpe:/o:redhat:enterprise_linux:5:*:*:*:*:*:*:*

    • Configuration RedHat 7:
  • cpe:/o:redhat:enterprise_linux:5::client:*:*:*:*:*

    • Configuration RedHat 8:
  • cpe:/o:redhat:enterprise_linux:5::server:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:20114973000
    V
    		CVE-2011-4973 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-02-15
    oval:com.ubuntu.cosmic:def:20114973000
    V
    		CVE-2011-4973 on Ubuntu 18.10 (cosmic) - medium.
    2018-02-15
    oval:com.ubuntu.cosmic:def:201149730000000
    V
    		CVE-2011-4973 on Ubuntu 18.10 (cosmic) - medium.
    2018-02-15
    oval:com.ubuntu.bionic:def:201149730000000
    V
    		CVE-2011-4973 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-02-15
    oval:com.ubuntu.artful:def:20114973000
    V
    		CVE-2011-4973 on Ubuntu 17.10 (artful) - medium.
    2018-02-15
    oval:com.ubuntu.trusty:def:20114973000
    V
    		CVE-2011-4973 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-02-15
    oval:com.ubuntu.xenial:def:201149730000000
    V
    		CVE-2011-4973 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-02-15
    oval:com.ubuntu.bionic:def:20114973000
    V
    		CVE-2011-4973 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-02-15
    oval:com.ubuntu.precise:def:20114973000
    V
    		CVE-2011-4973 on Ubuntu 12.04 LTS (precise) - medium.
    2013-11-14
    oval:com.redhat.rhba:def:20130009
    P
    		RHBA-2013:0009: mod_nss bug fix update (Moderate)
    2013-01-07
    oval:com.redhat.rhba:def:20111656
    P
    		RHBA-2011:1656: mod_nss bug fix update (Moderate)
    2011-12-06
    BACK
    mod_nss_project mod nss 1.0.8