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CVE

CVE-2024-28250

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 an

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in native routing mode (routingMode=native) and in Cilium 1.14.4 in tunneling mode (routingMode=tunnel).

Not that in tunneling mode, encryption.wireguard.encapsulate must be set to true. There is no known workaround for this issue.

MEDIUM · CVSS 6.1 EPSS 0.00051
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-311Missing Encryption of Sensitive Data
CWE-319Cleartext Transmission of Sensitive Information
▤

Affected Products & Versions

2
cilium>= 1.14.0 and < 1.14.8
cilium>= 1.15.0 and < 1.15.2
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/cilium/cilium MODERATE fixed in 1.14.8
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Mar 2024 · 10:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
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🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/cilium/cilium/releases/tag/v1.13.13Release Notes
https://github.com/cilium/cilium/releases/tag/v1.14.8Release Notes
https://github.com/cilium/cilium/releases/tag/v1.15.2Release Notes
https://github.com/cilium/cilium/security/advisories/GHSA-v6q2-4qr3-5cw6Vendor Advisory
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