VYPR
High severityNVD Advisory· Published Mar 27, 2024· Updated Apr 10, 2025

Insecure IPsec transport encryption in Cilium

CVE-2024-28860

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/cilium/ciliumGo
>= 1.4.0, < 1.13.141.13.14
github.com/cilium/ciliumGo
>= 1.14.0, < 1.14.91.14.9
github.com/cilium/ciliumGo
>= 1.15.0, < 1.15.31.15.3

Affected products

27

Patches

Vulnerability mechanics

References

8

News mentions

0

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