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Security Advisories: GSA_kwCzR0hTQS12NnEyLTRxcjMtNWN3Ns4AA6Gm
Unencrypted traffic between nodes when using WireGuard and L7 policies
Impact
In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies:
- Traffic that should be WireGuard-encrypted is sent unencrypted between a node's Envoy proxy and pods on other nodes.
- Traffic that should be WireGuard-encrypted is sent unencrypted between a node's DNS proxy and pods on other nodes.
Patches
This issue affects:
- In native routing mode (
routingMode=native):- Cilium v1.14 versions before v1.14.8
- Cilium v1.15 versions before v1.15.2
- In tunneling mode (
routingMode=tunnel):- Cilium v1.14 versions before v1.14.4
- Cilium v1.14.4 if
encryption.wireguard.encapsulateis set tofalse(default).
This issue has been resolved in:
- In native routing mode (
routingMode=native):- Cilium v1.14.8
- Cilium v1.15.2
- In tunneling mode (
routingMode=tunnel):- Cilium v1.14.4. NOTE
encryption.wireguard.encapsulatemust be set totrue.
- Cilium v1.14.4. NOTE
Workarounds
There is no workaround to this issue.
Acknowledgements
The Cilium community has worked together with members of Isovalent to prepare these mitigations. Special thanks to @brb, @giorio94, @gandro and @jschwinger233 for their work on triaging and remediating this issue.
For more information
If you have any questions or comments about this advisory, please reach out on Slack.
If you think you found a related vulnerability, we strongly encourage you to report security vulnerabilities to our private security mailing list at [email protected]. This is a private mailing list where only members of the Cilium internal security team are subscribed to, and your report will be treated as top priority.
Permalink: https://github.com/advisories/GHSA-v6q2-4qr3-5cw6JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS12NnEyLTRxcjMtNWN3Ns4AA6Gm
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 1 month ago
Updated: about 1 month ago
CVSS Score: 6.1
CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Identifiers: GHSA-v6q2-4qr3-5cw6, CVE-2024-28250
References:
- https://github.com/cilium/cilium/security/advisories/GHSA-v6q2-4qr3-5cw6
- https://nvd.nist.gov/vuln/detail/CVE-2024-28250
- https://github.com/cilium/cilium/releases/tag/v1.13.13
- https://github.com/cilium/cilium/releases/tag/v1.14.8
- https://github.com/cilium/cilium/releases/tag/v1.15.2
- https://github.com/advisories/GHSA-v6q2-4qr3-5cw6
Blast Radius: 12.3
Affected Packages
go:github.com/cilium/cilium
Dependent packages: 51Dependent repositories: 103
Downloads:
Affected Version Ranges: >= 1.15.0, < 1.15.2, >= 1.14.0, < 1.14.8
Fixed in: 1.15.2, 1.14.8
All affected versions: 1.14.0, 1.14.1, 1.14.2, 1.14.3, 1.14.4, 1.14.5, 1.14.6, 1.14.7, 1.15.0, 1.15.1
All unaffected versions: 0.8.0, 0.8.1, 0.8.2, 0.9.0, 0.10.0, 0.12.0, 0.13.1, 0.13.2, 0.13.3, 0.13.4, 0.13.5, 0.13.6, 0.13.7, 0.13.8, 0.13.9, 0.13.10, 0.13.11, 0.13.12, 0.13.13, 0.13.14, 0.13.15, 0.13.16, 0.13.17, 0.13.18, 0.13.19, 0.13.20, 0.13.21, 0.13.22, 0.13.23, 0.13.24, 0.13.25, 0.13.28, 0.15.7, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2.8, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3.8, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.5.10, 1.5.11, 1.5.12, 1.5.13, 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.6.9, 1.6.10, 1.6.11, 1.6.12, 1.7.0, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.5, 1.7.6, 1.7.7, 1.7.8, 1.7.9, 1.7.10, 1.7.11, 1.7.12, 1.7.13, 1.7.14, 1.7.15, 1.7.16, 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5, 1.8.6, 1.8.7, 1.8.8, 1.8.9, 1.8.10, 1.8.11, 1.8.12, 1.8.13, 1.9.0, 1.9.1, 1.9.2, 1.9.3, 1.9.4, 1.9.5, 1.9.6, 1.9.7, 1.9.8, 1.9.9, 1.9.10, 1.9.11, 1.9.12, 1.9.13, 1.9.14, 1.9.15, 1.9.16, 1.9.17, 1.9.18, 1.10.0, 1.10.1, 1.10.2, 1.10.3, 1.10.4, 1.10.5, 1.10.6, 1.10.7, 1.10.8, 1.10.9, 1.10.10, 1.10.11, 1.10.12, 1.10.13, 1.10.14, 1.10.15, 1.10.16, 1.10.17, 1.10.18, 1.10.19, 1.10.20, 1.11.0, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.11.5, 1.11.6, 1.11.7, 1.11.8, 1.11.9, 1.11.10, 1.11.11, 1.11.12, 1.11.13, 1.11.14, 1.11.15, 1.11.16, 1.11.17, 1.11.18, 1.11.19, 1.11.20, 1.12.0, 1.12.1, 1.12.2, 1.12.3, 1.12.4, 1.12.5, 1.12.6, 1.12.7, 1.12.8, 1.12.9, 1.12.10, 1.12.11, 1.12.12, 1.12.13, 1.12.14, 1.12.15, 1.12.16, 1.12.17, 1.12.18, 1.12.19, 1.13.0, 1.13.1, 1.13.2, 1.13.3, 1.13.4, 1.13.5, 1.13.6, 1.13.7, 1.13.8, 1.13.9, 1.13.10, 1.13.11, 1.13.12, 1.13.13, 1.14.8, 1.15.2