#VU77526 Permissions, Privileges, and Access Controls in apiserver - CVE-2023-2728

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Main Vulnerability Database Vulnerabilities #VU77526

#VU77526 Permissions, Privileges, and Access Controls in apiserver - CVE-2023-2728

Published: June 19, 2023 / Updated: September 6, 2024


Vulnerability identifier: #VU77526
Vulnerability risk: 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:P/U:Green
CVE-ID: CVE-2023-2728
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: Public exploit is 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 that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers.

Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with ephemeral containers.


Remediation

Install updates from vendor's website.

External links