CVE-2023-2431: K8s.io/kubernetes Remote Code Execution Vulnerability
MODERATECVE-2023-2431 is a MODERATE (CVSS 4.4) remote code execution vulnerability (CWE-1287: Improper Validation of Specified Type of Input) affecting K8s.io/kubernetes libraries in the Go ecosystem. The issue involves kubelet vulnerable to bypass of seccomp profile enforcement. Remediation is available by upgrading affected packages to version 1.24.14, 1.25.10, 1.26.5, 1.27.2.
CVE-2023-2431 at a Glance
Security Impact
CVSS: 4.4
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N).
How to Fix CVE-2023-2431
To remediate this vulnerability, upgrade all affected K8s.io/kubernetes dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade k8s.io/kubernetes to 1.24.14Upgrade k8s.io/kubernetes to 1.25.10Upgrade k8s.io/kubernetes to 1.26.5Upgrade k8s.io/kubernetes to 1.27.2Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for k8s.io/kubernetesHow to Check if You Are Affected
To determine whether your application is affected by CVE-2023-2431, inspect your project dependencies for K8s.io/kubernetes:
inspect dependencies for k8s.io/kubernetesAnalyze the terminal output to locate any version of K8s.io/kubernetes in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.24.14), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-1287: Improper Validation of Specified Type of Input, where the product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type. In K8s.io/kubernetes, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2023-2431 Affected K8s.io/kubernetes Versions
4 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
k8s.io/kubernetes
|
Go |
< 1.24.14
|
1.24.14
|
|
k8s.io/kubernetes
|
Go |
≥ 1.25.0
< 1.25.10
|
1.25.10
|
|
k8s.io/kubernetes
|
Go |
≥ 1.26.0
< 1.26.5
|
1.26.5
|
|
k8s.io/kubernetes
|
Go |
≥ 1.27.0
< 1.27.2
|
1.27.2
|
References
Frequently Asked Questions
What is CVE-2023-2431?
Which K8s.io/kubernetes versions are affected?
What version fixes CVE-2023-2431?
Is k8s.io/kubernetes affected?
What is the CVSS score of CVE-2023-2431?
What CWE is associated with CVE-2023-2431?
How can I check Go dependencies for CVE-2023-2431?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-xc8m-28vv-4pjc",
"modified" : "2024-12-12T19:11:51Z",
"published" : "2023-06-16T09:30:24Z",
"aliases" : [ "CVE-2023-2431" ],
"summary" : "Kubelet vulnerable to bypass of seccomp profile enforcement",
"details" : "A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "k8s.io/kubernetes"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.24.14"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "k8s.io/kubernetes"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.25.0"
}, {
"fixed" : "1.25.10"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "k8s.io/kubernetes"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.26.0"
}, {
"fixed" : "1.26.5"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "k8s.io/kubernetes"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.27.0"
}, {
"fixed" : "1.27.2"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-2431"
}, {
"type" : "WEB",
"url" : "https://github.com/kubernetes/kubernetes/issues/118690"
}, {
"type" : "WEB",
"url" : "https://github.com/kubernetes/kubernetes/pull/117020"
}, {
"type" : "WEB",
"url" : "https://github.com/kubernetes/kubernetes/pull/117116"
}, {
"type" : "WEB",
"url" : "https://github.com/kubernetes/kubernetes/pull/117117"
}, {
"type" : "WEB",
"url" : "https://github.com/kubernetes/kubernetes/pull/117118"
}, {
"type" : "WEB",
"url" : "https://github.com/kubernetes/kubernetes/pull/117147"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/kubernetes/kubernetes"
}, {
"type" : "WEB",
"url" : "https://groups.google.com/g/kubernetes-security-announce/c/QHmx0HOQa10"
}, {
"type" : "WEB",
"url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/43HDSKBKPSW53OW647B5ETHRWFFNHSRQ"
}, {
"type" : "WEB",
"url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XBX4RL4UOC7JHWWYB2AJCKSUM7EG5Y5G"
}, {
"type" : "WEB",
"url" : "https://pkg.go.dev/vuln/GO-2023-1864"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-1287" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-06-16T19:42:18Z",
"nvd_published_at" : "2023-06-16T08:15:08Z"
}
}