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osvGoogleOSV:GHSA-92HX-3MH6-HC49
HistorySep 24, 2023 - 3:30 a.m.

kube-apiserver authentication bypass vulnerability

2023-09-2403:30:20
Google
osv.dev
12
kubernetes
authentication bypass
vulnerability
pod manipulation
privilege escalation
unauthorized access

8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

7.2 High

AI Score

Confidence

Low

0.004 Low

EPSS

Percentile

72.8%

An authentication bypass vulnerability was discovered in kube-apiserver. This issue could allow a remote, authenticated attacker who has been given permissions “update, patch” the “pods/ephemeralcontainers” subresource beyond what the default is. They would then need to create a new pod or patch one that they already have access to. This might allow evasion of SCC admission restrictions, thereby gaining control of a privileged pod.

8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

7.2 High

AI Score

Confidence

Low

0.004 Low

EPSS

Percentile

72.8%