Vulnerability CVE-2014-3879

Vulnerability Name:

CVE-2014-3879 (CCN-93610)

Assigned:

2014-06-03

Published:

2014-06-03

Updated:

2020-02-27

Summary:

OpenPAM Nummularia 9.2 through 10.0 does not properly handle the error reported when an include directive refers to a policy that does not exist, which causes the loaded policy chain to no be discarded and allows context-dependent attackers to bypass authentication via a login (1) without a password or (2) with an incorrect 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

Vulnerability Type:

CWE-287

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2014-3879

Source: CCN
Type: FreeBSD-SA-14:13.pam
Incorrect error handling in PAM policy parser

Source: MISC
Type: Patch, Third Party Advisory
http://www.freebsd.org/security/advisories/FreeBSD-SA-14:13.pam.asc

Source: CONFIRM
Type: Release Notes
http://www.openpam.org/browser/openpam/trunk/HISTORY

Source: BID
Type: Third Party Advisory, VDB Entry
67808

Source: CCN
Type: BID-67808
FreeBSD OpenPAM Login Policy Parser Unauthorized Access Vulnerability

Source: MISC
Type: Patch, VDB Entry, Vendor Advisory
http://www.securitytracker.com/id/1030330

Source: XF
Type: UNKNOWN
freebsd-cve20143879-sec-bypass(93610)

Vulnerable Configuration:

Configuration 1:

cpe:/o:freebsd:freebsd:*:*:*:*:*:*:*:* (Version <= 9.2)

Configuration CCN 1:

cpe:/o:freebsd:freebsd:9.2:*:*:*:*:*:*:*

Denotes that component is vulnerable

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