Vulnerability · Published Oct 29, 2024 · Assigned by GitHub_M

CVE-2024-48921Kyverno's PolicyException objects can be created in any namespace by default

High 8.7

In plain English

A high-severity security flaw in kyverno from kyverno. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.6%top 52.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/kyverno/kyverno	1.13.0	GHSA-qjvc-p88j-j9rm
Go	github.com/kyverno/kyverno	1.13.0	GO-2024-3230

Affected products (as reported)

Vendor	Product	Versions
kyverno	kyverno	< 1.13.0

Weakness: CWE-285 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

References

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