CVE-2024-28860 Insecure IPsec transport encryption in Cilium
Man-in-the-middle attackers can decrypt traffic and recover keys due to IPsec sequence number collisions in Cilium's transparent encryption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-28860?
CVE-2024-28860 is a high-severity vulnerability in cilium, published on 27 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-326
Which versions are affected by CVE-2024-28860?
14 open source packages ship an affected version, including github.com/cilium/cilium, cilium and cilium-operator. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/cilium/cilium Go | All versions | 1.13.14, 1.14.9, 1.15.3 |
github.com/cilium/cilium Go | From 1.14.0 | 1.14.9 |
github.com/cilium/cilium Go | From 1.14.0 | 1.14.9 |
github.com/cilium/cilium Go | From 1.15.0 | 1.15.3 |
github.com/cilium/cilium Go | From 1.15.0 | 1.15.3 |
github.com/cilium/cilium Go | From 1.4.0 | 1.13.14 |
8 more packages
github.com/cilium/cilium Go | From 1.4.0 | 1.13.14 |
cilium Bitnami | From 1.14.0 to 1.13.14 | 1.14.9, 1.15.3 |
cilium-operator Bitnami | From 1.14.0 to 1.13.14 | 1.14.9, 1.15.3 |
cilium-proxy Bitnami | From 1.4.0 | 1.13.14, 1.14.9, 1.15.3 |
hubble Bitnami | From 1.4.0 | 1.13.14, 1.14.9, 1.15.3 |
hubble-relay Bitnami | From 1.14.0 to 1.13.14 | 1.14.9, 1.15.3 |
hubble-ui Bitnami | From 1.4.0 | 1.13.14, 1.14.9, 1.15.3 |
hubble-ui-backend Bitnami | From 1.4.0 | 1.13.14, 1.14.9, 1.15.3 |
Products include Cilium Cilium.
How do I fix CVE-2024-28860?
Upgrade github.com/cilium/cilium to a fixed version for your release line: 1.13.14, 1.14.9 or 1.15.3.
Is CVE-2024-28860 being exploited?
There is no known exploitation of CVE-2024-28860 in the wild and no public exploit code.
Other vulnerabilities in cilium
- CVE-2026-49445 Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access
- CVE-2022-29178 Incorrect Default Permissions in Cilium
- CVE-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive
- CVE-2024-37307 Cilium leaks sensitive information in cilium-bugtool
- CVE-2023-39347 Cilium NetworkPolicy bypass via pod labels
Sources
Also known as BIT-cilium-2024-28860, BIT-cilium-operator-2024-28860, BIT-cilium-proxy-2024-28860, BIT-hubble-2024-28860, BIT-hubble-relay-2024-28860, BIT-hubble-ui-2024-28860 and 3 more.