CVE-2023-39347

CVSS 3.1 Score 9.0 of 10 (high)

Details

Published Sep 27, 2023
Updated: Sep 29, 2023
CWE ID 345

Summary

CVE-2023-39347 affects Cilium, a networking, observability, and security solution that utilizes an eBPF-based dataplane. An attacker with Kubernetes API Server access can manipulate pod labels, causing Cilium to apply incorrect network policies. This issue arises during pod updates, where Cilium incorrectly relies on user-supplied labels to determine applicable policies. The vulnerability can bypass network policies based on namespaces, service accounts, or cluster constructs. Attackers can provide non-existent construct names, effectively disabling all affected policies. This issue has been resolved in Cilium versions 1.14.2, 1.13.7, and 1.12.14. As a temporary measure, users can employ an admission webhook to restrict pod label updates to specific keys.

Ligh bulbPrevent cyber attacks with Recorded Future by prioritizing and patching critical vulnerabilities being exploited by threat actors targeting your industry. Book your demo to learn more.

Share

Prioritize, Pinpoint, and Act to Prevent Vulnerability Exploits with Recorded Future

Note: This is just a basic overview providing quick insights into CVE-2023-39347 information. Gain full access to comprehensive CVE data, third party vulnerabilities, compromised credentials and more with Recorded Future
  • Gain complete coverage of your cyber, third party, and physical attack surface
  • Proactively mitigate threats before they turn into costly attacks
  • Make fast, effective, data-driven decisions

Book your demo

Sign in

Back to Vulnerability Database