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Vulnerability · Published Mar 27, 2024 · Assigned by GitHub_M

CVE-2024-28860Insecure IPsec transport encryption in Cilium

High 8.0

In plain English

A high-severity security flaw in cilium from cilium. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.2%top 93.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/cilium/cilium1.13.14GHSA-pwqm-x5x6-5586
Gogithub.com/cilium/cilium1.14.9GHSA-pwqm-x5x6-5586
Gogithub.com/cilium/cilium1.15.3GHSA-pwqm-x5x6-5586
Gogithub.com/cilium/cilium1.13.14, 1.14.9, 1.15.3GO-2024-2666

Affected products (as reported)

VendorProductVersions
cilium cilium >= 1.4.0, <= 1.13.14>= 1.14.0, < 1.14.9>= 1.15.0, < 1.15.3

Weakness: CWE-326 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

References