CVE-2023-34242
3.4 · LOWOverview
CVE-2023-34242 is a low-severity vulnerability affecting cilium cilium. It was published on June 15, 2023 and has a CVSS 3.1 base score of 3.4 (LOW).
This vulnerability has a CVSS 3.1 base score of 3.4, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to version 1.13.4, when Gateway API is enabled in Cilium, the absence of a check on the namespace in which a ReferenceGrant is created could result in Cilium unintentionally gaining visibility of secrets (including certificates) and services across namespaces. An attacker on an affected cluster can leverage this issue to use cluster secrets that should not be visible to them, or communicate with services that they should not have access to. Gateway API functionality is disabled by default. This vulnerability is fixed in Cilium release 1.13.4. As a workaround, restrict the creation of `ReferenceGrant` resources to admin users by using Kubernetes RBAC.
Remediation
Check the references section for vendor advisories and patches from cilium. Update cilium to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cilium | cilium | >= 0, < 1.13.4 | Affected |
Frequently Asked Questions
What is CVE-2023-34242?
CVE-2023-34242 is a low-severity vulnerability affecting cilium cilium. It was published on June 15, 2023 and has a CVSS 3.1 base score of 3.4 (LOW).
How severe is CVE-2023-34242?
This vulnerability has a CVSS 3.1 base score of 3.4, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-34242?
Check the references section for vendor advisories and patches from cilium. Update cilium to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-34242?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-34242 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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