#VU71364 Improper access control in apiserver - CVE-2022-3162

Vulnerability identifier: #VU71364

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3162

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
apiserver
Web applications / Other software

Vendor: Kubernetes

Description

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

The vulnerability exists due to improper access restrictions. Users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom resources of a different kind in the same API group they are not authorized to read.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

apiserver: 1.22.0 - 1.25.3

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External links
https://access.redhat.com/errata/RHSA-2022:7399

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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.