Permissions, Privileges, and Access Controls in apiserver - CVE-2023-2727

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Main Vulnerability Database Vulnerabilities #VU77525

Permissions, Privileges, and Access Controls in apiserver - CVE-2023-2727

Published: June 19, 2023


Vulnerability identifier: #VU77525
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-2727
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
apiserver
Software vendor:
Kubernetes

Description

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to improperly imposed security restrictions. A remote user can launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers.

Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.


Remediation

Install updates from vendor's website.

External links