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osvGoogleOSV:GHSA-35C7-W35F-XWGH
HistoryOct 30, 2023 - 3:30 a.m.

Kube-proxy may unintentionally forward traffic

2023-10-3003:30:15
Google
osv.dev
3
kube-proxy
windows
loadbalancer .

6.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.9 Medium

AI Score

Confidence

High

2.1 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:H/Au:S/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

28.1%

Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (spec.ports[*].port) as a LoadBalancer Service when the LoadBalancer controller does not set the status.loadBalancer.ingress[].ip field. Clusters
where the LoadBalancer controller sets the status.loadBalancer.ingress[].ip field are unaffected.

CPENameOperatorVersion
k8s.io/kuberneteslt1.21

6.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.9 Medium

AI Score

Confidence

High

2.1 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:H/Au:S/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

28.1%