Improper authentication in ClusterLabs pcs

1) Improper Authentication

EUVDB-ID: #VU67056

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-1049

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote user to bypass authentication process.

The vulnerability exists due to pcs daemon allows expired accounts, and accounts with expired passwords to login when using PAM authentication. A remote user with an expired account can still access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

pcs: 0.10 - 0.11.2

CPE2.3

• cpe:2.3:a:clusterlabs:pcs:0.10:*:*:*:*:*:*:*
• cpe:2.3:a:clusterlabs:pcs:0.10.1:*:*:*:*:*:*:*
• cpe:2.3:a:clusterlabs:pcs:0.10.2:*:*:*:*:*:*:*

External links

https://huntr.dev/bounties/7aa921fc-a568-4fd8-96f4-7cd826246aa5
https://www.debian.org/security/2022/dsa-5226

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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