CVE-2020-25654

pacemaker: ACL restrictions bypass

Severity Score

7.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration.

Se encontró un fallo de omisión de ACL en pacemaker. Un atacante que tenga una cuenta local en el clúster y en el grupo haclient podría usar la comunicación IPC con varios demonios directamente para llevar a cabo determinadas tareas que las ACL no podrían hacer si pasaran por la configuración

An ACL bypass flaw was found in Pacemaker. This flaw allows an attacker with a local account on the cluster and in the haclient group to use IPC communication with various daemons to directly perform certain tasks that would be prevented if they had gone through configured ACLs. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-09-16 CVE Reserved
2020-11-09 CVE Published
2023-09-30 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (6)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html	Mailing List
https://seclists.org/oss-sec/2020/q4/83	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1888191	2020-12-15
https://lists.clusterlabs.org/pipermail/users/2020-October/027840.html	2023-09-29
https://security.gentoo.org/glsa/202309-09	2023-09-29
https://access.redhat.com/security/cve/CVE-2020-25654	2020-12-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Clusterlabs Search vendor "Clusterlabs"		Pacemaker Search vendor "Clusterlabs" for product "Pacemaker"				< 1.1.23 Search vendor "Clusterlabs" for product "Pacemaker" and version " < 1.1.23"		-		Affected
Clusterlabs Search vendor "Clusterlabs"		Pacemaker Search vendor "Clusterlabs" for product "Pacemaker"				>= 2.0.0 < 2.0.3 Search vendor "Clusterlabs" for product "Pacemaker" and version " >= 2.0.0 < 2.0.3"		-		Affected
Clusterlabs Search vendor "Clusterlabs"		Pacemaker Search vendor "Clusterlabs" for product "Pacemaker"				2.0.5 Search vendor "Clusterlabs" for product "Pacemaker" and version "2.0.5"		rc1		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected