SARA / Free Tools / CVE / CVE-2023-41333

CVE-2023-41333 — Cilium is a networking, observability, and security solution with an eBPF-based

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. An attacker with the ability to create or modify CiliumNetworkPolicy objects in a particular namespace is able to affect traffic on an entire Cilium cluster, potentially bypassing policy en

CVSS
6.9 MEDIUM
EPSS
1.00% (top 98.60%)
CWE
CWE-306
Published
2023-09-26T20:19:34.512Z
Last modified
2024-09-23T20:32:01.851Z
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H

01What is this vulnerability?

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. An attacker with the ability to create or modify CiliumNetworkPolicy objects in a particular namespace is able to affect traffic on an entire Cilium cluster, potentially bypassing policy enforcement in other namespaces. By using a crafted `endpointSelector` that uses the `DoesNotExist` operator on the…

02Affected products

VendorProductVersions
ciliumcilium>= 1.14.0, < 1.14.2, >= 1.13.0, < 1.13.7, < 1.12.14

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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