Kube-apiserver: privesc
Vulnerability Description
An authentication bypass vulnerability was discovered in kube-apiserver. This issue could allow a remote, authenticated attacker who has been given permissions "update, patch" the "pods/ephemeralcontainers" subresource beyond what the default is. They would then need to create a new pod or patch one that they already have access to. This might allow evasion of SCC admission restrictions, thereby gaining control of a privileged pod.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- This issue was discovered by Xingxing Xia (Red Hat).
References
- https://access.redhat.com/errata/RHSA-2023:3976
- https://access.redhat.com/errata/RHSA-2023:4093
- https://access.redhat.com/errata/RHSA-2023:4312
- https://access.redhat.com/errata/RHSA-2023:4898
- https://access.redhat.com/errata/RHSA-2023:5008
- https://access.redhat.com/security/cve/CVE-2023-1260
- https://bugzilla.redhat.com/show_bug.cgi?id=2176267
- https://github.com/advisories/GHSA-92hx-3mh6-hc49
- https://security.netapp.com/advisory/ntap-20231020-0010/
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