PT-2023-21234 · Cilium · Cilium

Ysksuzuki · Published 2023-03-17 · Updated 2024-08-20 · CVE-2023-27594

Positive Technologies (AI Summary)

CVSS v3.1

4.2

Medium

Base vector

AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Cilium versions prior to 1.11.15 Cilium versions prior to 1.12.8 Cilium versions prior to 1.13.1

Description 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.

Recommendations For versions prior to 1.11.15, update to version 1.11.15 or later. For versions prior to 1.12.8, update to version 1.12.8 or later. For versions prior to 1.13.1, update to version 1.13.1 or later. As a temporary workaround, consider disabling IPv6 routing.

Exploit

Fix

Incorrect Authorization

Improper Authorization

Weakness Enumeration

CWE-863

CWE-285

Related Identifiers

BIT-CILIUM-2023-27594

BIT-CILIUM-OPERATOR-2023-27594

BIT-CILIUM-PROXY-2023-27594

BIT-HUBBLE-2023-27594

BIT-HUBBLE-RELAY-2023-27594

BIT-HUBBLE-UI-2023-27594

BIT-HUBBLE-UI-BACKEND-2023-27594

CVE-2023-27594

GHSA-8FG8-JH2H-F2HC

GO-2023-1643

Affected Products

Cilium

References · 19

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27594.json · Exploit
• https://osv.dev/vulnerability/BIT-cilium-proxy-2023-27594 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-27594 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-27594 · Security Note
• https://osv.dev/vulnerability/BIT-hubble-ui-backend-2023-27594 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-8fg8-jh2h-f2hc · Vendor Advisory
• https://osv.dev/vulnerability/BIT-hubble-2023-27594 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-hubble-ui-2023-27594 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-cilium-operator-2023-27594 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2023-1643 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-hubble-relay-2023-27594 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-cilium-2023-27594 · Vendor Advisory
• https://github.com/cilium/cilium · Note
• https://github.com/cilium/cilium/releases/tag/v1.11.15 · Note
• https://github.com/cilium/cilium/releases/tag/v1.12.8 · Note