CVE-2024-28860 Insecure IPsec transport encryption in Cilium

2024-03-2718:34:23

CWE-326

GitHub_M

www.cve.org

cilium

ipsec

encryption

vulnerability

ebpf

cryptographic attacks

chosen plaintext

key recovery

replay attacks

man-in-the-middle

esp sequence number collision

fixed versions

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

7.7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%

JSON

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.

CNA Affected

[
  {
    "vendor": "cilium",
    "product": "cilium",
    "versions": [
      {
        "version": ">= 1.4.0, <= 1.13.14",
        "status": "affected"
      },
      {
        "version": ">= 1.14.0, < 1.14.9",
        "status": "affected"
      },
      {
        "version": ">= 1.15.0, < 1.15.3",
        "status": "affected"
      }
    ]
  }
]