CVE-2024-28860
Users of IPsec transparent encryption in Cilium may be vulnerable to cryptographic attacks that render the transparent encryption ineffective.
Does this matter?
Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.17% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-326
- Affected
- cilium/cilium
- Source
- security-advisories@github.com
References
- https://docs.cilium.io/en/stable/security/network/encryption-ipsecProduct
- https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72Patch
- https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149Patch
- https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37faPatch
- https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586Third Party Advisory
- https://docs.cilium.io/en/stable/security/network/encryption-ipsecProduct
- https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72Patch
- https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149Patch
- https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37faPatch
- https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.