CVE-2024-48921

Description

Kyverno is a policy engine designed for Kubernetes. A kyverno ClusterPolicy, ie. "disallow-privileged-containers," can be overridden by the creation of a PolicyException in a random namespace. By design, PolicyExceptions are consumed from any namespace. Administrators may not recognize that this allows users with privileges to non-kyverno namespaces to create exceptions. This vulnerability is fixed in 1.13.0.

CVSS v3.1 Score

2.7

LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

CWE-285 CWE-285

CWE-863 Incorrect Authorization

Affected Products

Vendor	Product	Versions
nirmata	kyverno	< 1.13.0

References

Advisories & Patches

https://github.com/kyverno/kyverno/security/advisories/GHSA-qjvc-p88j-j9rm

Exploits

https://github.com/kyverno/kyverno/security/advisories/GHSA-qjvc-p88j-j9rm

Frequently Asked Questions

What is CVE-2024-48921? +

Kyverno is a policy engine designed for Kubernetes. A kyverno ClusterPolicy, ie. "disallow-privileged-containers," can be overridden by the creation of a PolicyException in a random namespace. By design, PolicyExceptions are consumed from any namespace. Administrators may not recognize that this allows users with privileges to non-kyverno namespaces to create exceptions. This vulnerability is fixed in 1.13.0. It has a CVSS v3.1 base score of 2.7 (LOW).

How severe is CVE-2024-48921? +

CVE-2024-48921 has a CVSS v3.1 score of 2.7 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2024-48921? +

CVE-2024-48921 affects products from nirmata, specifically: kyverno. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-48921? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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