CVE-2024-28860 | BDVDB-2026-228946 Detail
ciliumcilium
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: adjacent.
Weaknesses#
- CWE-326 Inadequate Encryption Strength
References#
- https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586
- https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72
- https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149
- https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa
- https://docs.cilium.io/en/stable/security/network/encryption-ipsec
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.