CVE-2023-27594: falha de média gravidade em cilium
Cilium vulnerable to potential network policy bypass when routing IPv6 traffic
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 4.2epss 0.6%
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled.
This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default.
The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Produtos afetados
cilium · ciliumCVEs relacionadas — cilium
No mesmo produto, das mais perigosas para as menos.
CVE-2023-27595MEDIUMCilium eBPF filters may be temporarily removed during agent restartEPSS 0.7%CVE-2023-30851LOWPotential HTTP policy bypass when using header rules in CiliumEPSS 0.7%CVE-2024-28248HIGHCilium intermittent HTTP policy bypassEPSS 0.6%CVE-2024-42486MEDIUMCilium vulnerable to information leakage via incorrect ReferenceGrant update logic in Gateway APIEPSS 0.6%CVE-2023-39347HIGHCilium NetworkPolicy bypass via pod labelsEPSS 0.6%CVE-2024-42487MEDIUMCilium's Gateway API route matching order contradicts specificationEPSS 0.5%