Debian update for pacemaker



Published: 2020-11-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-25654
CWE-ID CWE-284
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Debian Linux
Operating systems & Components / Operating system

pacemaker (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper access control

EUVDB-ID: #VU49118

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25654

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in pacemaker. A local account on the cluster and in the haclient group can 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.

Mitigation

Update pacemaker package to version 2.0.1-5+deb10u1.

Vulnerable software versions

Debian Linux: All versions

pacemaker (Debian package): before 2.0.1-5+deb10u1

External links

http://www.debian.org/security/2020/dsa-4791


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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