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Low · 2.6 CVE-2023-30851 BIT-cilium-2023-30851BIT-cilium-operator-2023-30851BIT-cilium-proxy-2023-30851BIT-hubble-2023-30851BIT-hubble-relay-2023-30851BIT-hubble-ui-2023-30851BIT-hubble-ui-backend-2023-30851EUVD-2023-1449GHSA-2h44-x2wx-49f4GO-2023-1785

Potential HTTP policy bypass when using header rules in Cilium

Published May 25, 2023 · Updated Jan 16, 2025 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
cilium cilium < 1.11.16, >= 1.12.0, < 1.12.9, >= 1.13.0, < 1.13.2 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling hubble-ui-backend 0.12.0-r0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/cilium/cilium < 1.11.16 1.11.16 GHSA-2h44-x2wx-49f4
Go github.com/cilium/cilium >= 1.12.0, < 1.12.9 1.12.9 GHSA-2h44-x2wx-49f4
Go github.com/cilium/cilium >= 1.13.0, < 1.13.2 1.13.2 GHSA-2h44-x2wx-49f4
Go github.com/cilium/cilium < 1.11.16 · >= 1.12.0, < 1.12.9 · >= 1.13.0, < 1.13.2 1.11.16, 1.12.9, 1.13.2 GO-2023-1785

References