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Moderate severityNVD Advisory· Published May 25, 2023· Updated Jan 16, 2025

Potential HTTP policy bypass when using header rules in Cilium

CVE-2023-30851

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple toEndpoints AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies. This issue has been patched in Cilium 1.11.16, 1.12.9, and 1.13.2.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/cilium/ciliumGo
< 1.11.161.11.16
github.com/cilium/ciliumGo
>= 1.12.0, < 1.12.91.12.9
github.com/cilium/ciliumGo
>= 1.13.0, < 1.13.21.13.2

Affected products

60

Patches

Vulnerability mechanics

References

6

News mentions

0

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