Improper access control in Kubernetes apiserver



Published: 2023-01-19
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-3162
CWE-ID CWE-284
Exploitation vector Network
Public exploit N/A
Vulnerable software
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apiserver
Web applications / Other software

Vendor Kubernetes

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper access control

EUVDB-ID: #VU71364

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3162

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

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

External links

http://access.redhat.com/errata/RHSA-2022:7399


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.



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