CVE-2024-28860

MEDIUM EPSS 6.9%
Published Mar 27, 20242y ago · Modified Jun 17, 20262w ago
6.8 CVSS 3.1
Medium
Find Similar
Published Mar 27, 2024 2y ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
6.8
Exploitability
1.6
Impact
5.2
Vector string
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Adjacent
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
6.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-326

Affected Products 3

VendorProductVersionRange
ciliumcilium*≥1.4.0  –  <1.13.14
ciliumcilium*≥1.14.0  –  <1.14.9
ciliumcilium*≥1.15.0  –  <1.15.3

References 5

  • docs.cilium.io https://docs.cilium.io/en/stable/security/network/encryption-ipsec
    Product
  • github.com https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72
    Patch
  • github.com https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149
    Patch
  • github.com https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa
    Patch
  • github.com https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586
    Third Party Advisory

Remediation

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