CVE-2023-2728
MEDIUM severity · CVSS 6.5 · Improper input validation
6.5CVSS MEDIUM
Summary
Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the `kubernetes.io/enforce-mountable-secrets` annotation are used together with ephemeral containers.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)5%
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2023/07/06/3
- https://github.com/kubernetes/kubernetes/issues/118640
- https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8
- https://security.netapp.com/advisory/ntap-20230803-0004/
- http://www.openwall.com/lists/oss-security/2023/07/06/3
- https://github.com/kubernetes/kubernetes/issues/118640
- https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8
- https://security.netapp.com/advisory/ntap-20230803-0004/