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CVE-2018-1002102

LOWCVSS 2.6/10EPSS 0.62%

Last modified

CVE-2018-1002102 is a low-severity vulnerability rated 2.6/10 on the CVSS scale. Improper validation of URL redirection in the Kubernetes API server in versions prior to v1.14.0 allows an attacker-controlled Kubelet to redirect API server requests from streaming endpoints to arbitrary hosts. Impacted API servers will follow the redirect as a GET request with client-certificate credentials for authenticating to the Kubelet.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

Improper validation of URL redirection in the Kubernetes API server in versions prior to v1.14.0 allows an attacker-controlled Kubelet to redirect API server requests from streaming endpoints to arbitrary hosts. Impacted API servers will follow the redirect as a GET request with client-certificate credentials for authenticating to the Kubelet.

Metrics

CVSS 3.1
2.6/10

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

EPSS Probability
0.62%

45.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
KubernetesKubernetes>= 1.10.0, <= 1.13.13—
KubernetesKubernetes1.14.0Alpha0
FedoraprojectFedora31—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-1002102?
Improper validation of URL redirection in the Kubernetes API server in versions prior to v1.14.0 allows an attacker-controlled Kubelet to redirect API server requests from streaming endpoints to arbitrary hosts. Impacted API servers will follow the redirect as a GET request with client-certificate credentials for authenticating to the Kubelet.
How severe is CVE-2018-1002102?
CVE-2018-1002102 has a CVSS score of 2.6/10 (LOW severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.
How do I fix CVE-2018-1002102?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST