CVE-2018-17953

pam_access does not handle netmask matches correctly

Severity Score

8.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A incorrect variable in a SUSE specific patch for pam_access rule matching in PAM 1.3.0 in openSUSE Leap 15.0 and SUSE Linux Enterprise 15 could lead to pam_access rules not being applied (fail open).

Una variable incorrecta en un parche específico de SUSE para la coincidencia de reglas pam_access en PAM 1.3.0 en openSUSE Leap 15.0 y SUSE Linux Enterprise 15 podría conducir a que las reglas de pam_access no se apliquen (fail open).

*Credits: Daniel Pecka

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-10-03 CVE Reserved
2018-11-27 CVE Published
2023-11-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (1)

URL	Tag	Source
https://bugzilla.suse.com/show_bug.cgi?id=1115640	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Kernel Search vendor "Kernel"	Linux-pam Search vendor "Kernel" for product "Linux-pam"	1.3.0 Search vendor "Kernel" for product "Linux-pam" and version "1.3.0"	-	Affected	in	Opensuse Search vendor "Opensuse"	Leap Search vendor "Opensuse" for product "Leap"	15.0 Search vendor "Opensuse" for product "Leap" and version "15.0"	-	Safe
Kernel Search vendor "Kernel"	Linux-pam Search vendor "Kernel" for product "Linux-pam"	1.3.0 Search vendor "Kernel" for product "Linux-pam" and version "1.3.0"	-	Affected	in	Suse Search vendor "Suse"	Linux Enterprise Search vendor "Suse" for product "Linux Enterprise"	15.0 Search vendor "Suse" for product "Linux Enterprise" and version "15.0"	-	Safe