Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Users of IPsec transparent encryption in Cilium may be vulnerable to cryptographic attacks that render the transparent encryption ineffective. In particular, Cilium is vulnerable to chosen plaintext, key recovery, replay attacks by a man-in-the-middle attacker. These attacks are possible due to an ESP sequence number collision when multiple nodes are configured with the same key. Fixed versions of Cilium use unique keys for each IPsec tunnel established between nodes, resolving all of the above attacks. This vulnerability is fixed in 1.13.13, 1.14.9, and 1.15.3.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2024-0984 | Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Users of IPsec transparent encryption in Cilium may be vulnerable to cryptographic attacks that render the transparent encryption ineffective. In particular, Cilium is vulnerable to chosen plaintext, key recovery, replay attacks by a man-in-the-middle attacker. These attacks are possible due to an ESP sequence number collision when multiple nodes are configured with the same key. Fixed versions of Cilium use unique keys for each IPsec tunnel established between nodes, resolving all of the above attacks. This vulnerability is fixed in 1.13.13, 1.14.9, and 1.15.3. |
Github GHSA |
GHSA-pwqm-x5x6-5586 | Cilium has insecure IPsec transport encryption |
References
History
No history.
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-04-10T18:25:55.223Z
Reserved: 2024-03-11T22:45:07.686Z
Link: CVE-2024-28860
Updated: 2024-08-02T00:56:58.123Z
Status : Analyzed
Published: 2024-03-27T19:15:48.827
Modified: 2025-09-02T16:05:05.377
Link: CVE-2024-28860
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Github GHSA