CVE-2023-2728 : Users may be able to launch containers that bypass the mountable secrets policy

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.

Published 2023-07-03 21:15:10

Updated 2025-02-13 17:16:22

Source Kubernetes

View at NVD, CVE.org

Products affected by CVE-2023-2728

Kubernetes » Kubernetes
Versions from including (>=) 1.27.0 and up to, including, (<=) 1.27.2
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
Matching versions
Kubernetes » Kubernetes
Versions from including (>=) 1.26.0 and up to, including, (<=) 1.26.5
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
Matching versions
Kubernetes » Kubernetes
Versions up to, including, (<=) 1.24.14
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
Matching versions
Kubernetes » Kubernetes
Versions from including (>=) 1.25.0 and up to, including, (<=) 1.25.10
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2023-2728

EPSS FAQ

3.26%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 86 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-2728

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N	1.2	5.2	Kubernetes
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: None
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N	1.2	5.2	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: None

CWE ids for CVE-2023-2728

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: jordan@liggitt.net (Secondary)

References for CVE-2023-2728

https://github.com/kubernetes/kubernetes/issues/118640

CVE-2023-2727, CVE-2023-2728: Bypassing policies imposed by the ImagePolicyWebhook and bypassing mountable secrets policy imposed by the ServiceAccount admission plugin · Issue #118640 · kubernetes/ku
Issue Tracking

CVEs referencing this url
https://security.netapp.com/advisory/ntap-20230803-0004/

July 2023 Kubernetes Vulnerabilities in NetApp Products | NetApp Product Security

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2023/07/06/3

oss-security - [kubernetes] CVE-2023-2728: Bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin Rita Zhang <rita.z.zhang@...il.com>
Mailing List
https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8

[Security Advisory] CVE-2023-2727: Bypassing policies imposed by the ImagePolicyWebhook admission plugin
Mailing List

CVEs referencing this url

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Vulnerability Details : CVE-2023-2728

Products affected by CVE-2023-2728

Exploit prediction scoring system (EPSS) score for CVE-2023-2728

CVSS scores for CVE-2023-2728

CWE ids for CVE-2023-2728

References for CVE-2023-2728