CVE-2022-3172

Description

A security issue was discovered in kube-apiserver that allows an aggregated API server to redirect client traffic to any URL. This could lead to the client performing unexpected actions as well as forwarding the client's API server credentials to third parties.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.1CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:L
• v3.1•HIGH•Score: 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

EPSS Trends

Current EPSS score: 3.41%• Percentile: 88%

Techniques & Countermeasures

• CWE-918•Server-Side Request Forgery (SSRF)

  The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Affected Systems

• kubernetes•apiserver

  ≤ 1.21.14 | ≥ 1.22.0, < 1.22.14 | ≥ 1.23.0, < 1.23.11 | ≥ 1.24.0, < 1.24.5 | 1.25.0

• kubernetes•kube-apiserver

  v1.25.0 | ≥ v1.24.0, ≤ v1.24.4 | ≥ v1.23.0, ≤ v1.23.10 | ≥ v1.22.0, ≤ v1.22.13 | ≤ v1.21.14

References (3)

• https://github.com/kubernetes/kubernetes/issues/112513
• https://groups.google.com/g/kubernetes-security-announce/c/_aLzYMpPRak
• https://security.netapp.com/advisory/ntap-20231221-0005/