Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
High
Attack Vector
Network
0

CVE-2020-8561

Disclosure Date: September 15, 2021
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.

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CVSS V3 Severity and Metrics
Base Score:
4.1 Medium
Impact Score:
1.4
Exploitability Score:
2.3
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
Low
Integrity (I):
None
Availability (A):
None

General Information

Vendors

  • kubernetes

Products

  • kubernetes 1.20.11,
  • kubernetes 1.21.5,
  • kubernetes 1.22.2

Additional Info

Technical Analysis