CVE-2024-28860: cilium Weak Crypto — Fix

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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CVSS v3.1 Score

8.0

HIGH

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Weakness Type (CWE)

CWE-326 CWE-326

Affected Products

Vendor	Product	Versions
cilium	cilium	1.4.0 — 1.13.14
cilium	cilium	1.14.0 — 1.14.9
cilium	cilium	1.15.0 — 1.15.3

References

Advisories & Patches

https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72 https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149 https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72 https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149 https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa

Other References

https://docs.cilium.io/en/stable/security/network/encryption-ipsec https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586 https://docs.cilium.io/en/stable/security/network/encryption-ipsec https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586

Frequently Asked Questions

What is CVE-2024-28860? +

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. It has a CVSS v3.1 base score of 8.0 (HIGH).

How severe is CVE-2024-28860? +

CVE-2024-28860 has a CVSS v3.1 score of 8.0 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-28860? +

CVE-2024-28860 affects products from cilium, specifically: cilium. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-28860? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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