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Incorrect Authorization

CVE-2024-48921

Low
2.7/10

Summary

Kyverno is a policy engine designed for Kubernetes. A Kyverno ClusterPolicy, ie. "disallow-privileged-containers," can be overridden by creating a "PolicyException" in a random namespace. By design, "PolicyExceptions" are consumed from any namespace. Administrators may not recognise that this allows users with privileges to "non-kyverno" namespaces to create exceptions. This vulnerability affects github.com/kyverno/kyverno versions prior to 1.13.0-rc.3.

  • LOW
  • NETWORK
  • LOW
  • UNCHANGED
  • NONE
  • HIGH
  • NONE
  • NONE

CWE-863 - Incorrect Authorization

Authorization is a security mechanism performed by an application to grant or deny access to the requested resources by verifying the privileges of the user. When an application lacks effective authorization mechanisms, it enables unauthorized users to gain unintended privileges and illegitimate access to resources. Such a vulnerability may result in exposure of sensitive information, denial of service, arbitrary code execution, and complete system takeover.

References

Advisory Timeline

  • Published