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githubGitHub Advisory DatabaseGHSA-X6MJ-W4JF-JMGW
HistoryFeb 15, 2022 - 1:57 a.m.

Server Side Request Forgery (SSRF) in Kubernetes

2022-02-1501:57:18
CWE-918
GitHub Advisory Database
github.com
16
kubernetes
ssrf
vulnerability
kube-controller-manager
authorized users
master's host network

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.3

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

EPSS

0.001

Percentile

41.5%

The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the masterโ€™s host network (such as link-local or loopback services).

Affected configurations

Vulners
Node
k8s.iokubernetesRange<1.15.12
OR
k8s.iokubernetesRange1.16.0โ€“1.16.9
OR
k8s.iokubernetesRange1.17.0โ€“1.17.4
OR
k8s.iokubernetesRange1.18.0โ€“1.18.1
VendorProductVersionCPE
k8s.iokubernetes*cpe:2.3:a:k8s.io:kubernetes:*:*:*:*:*:*:*:*

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.3

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

EPSS

0.001

Percentile

41.5%