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prionPRIOn knowledge basePRION:CVE-2023-34242
HistoryJun 15, 2023 - 8:15 p.m.

Design/Logic Flaw

2023-06-1520:15:00
PRIOn knowledge base
www.prio-n.com
7
cilium security
namespace check
referencegrant
gateway api
ebpf-based dataplane
kubernetes rbac

AI Score

5.1

Confidence

High

EPSS

0.001

Percentile

21.5%

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to version 1.13.4, when Gateway API is enabled in Cilium, the absence of a check on the namespace in which a ReferenceGrant is created could result in Cilium unintentionally gaining visibility of secrets (including certificates) and services across namespaces. An attacker on an affected cluster can leverage this issue to use cluster secrets that should not be visible to them, or communicate with services that they should not have access to. Gateway API functionality is disabled by default. This vulnerability is fixed in Cilium release 1.13.4. As a workaround, restrict the creation of ReferenceGrant resources to admin users by using Kubernetes RBAC.

CPENameOperatorVersion
ciliumlt1.13.4

AI Score

5.1

Confidence

High

EPSS

0.001

Percentile

21.5%

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