Medium severity · published Jul 3, 2023
CVE-2023-2728
Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers
6.5
CVSS
2.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KU
Kubernetes · Kubernetes
through 1.24.14; 1.25.0 through 1.25.10; 1.26.0 through 1.26.5; 1.27.0 through 1.27.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-2728
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-2728
Mailing List
http://www.openwall.com/lists/oss-security/2023/07/06/3
Issue Tracking
https://github.com/kubernetes/kubernetes/issues/118640
Mailing List
https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8
security.netapp.com
https://security.netapp.com/advisory/ntap-20230803-0004/
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