Bug 2118543 (CVE-2022-2837)

Summary: CVE-2022-2837 coreDNS: DNS Redirection of Top-Level Domains
Product: [Other] Security Response Reporter: Avinash Hanwate <ahanwate>
Component: vulnerabilityAssignee: Nobody <nobody>
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Priority: medium    
Version: unspecifiedCC: jburrell, vkumar
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Hardware: All   
OS: Linux   
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A flaw was found in coreDNS. This flaw allows a malicious user to redirect traffic intended for external top-level domains (TLD) to a pod they control by creating projects and namespaces that match the TLD.
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Bug Blocks: 2117086, 2118598    

Description Avinash Hanwate 2022-08-16 06:08:39 UTC
It is possible for a malicious user to redirect traffic intended for external top-level domains (TLD) to a pod they control by creating
projects/namespaces that match the TLD.

References
- https://docs.openshift.com/container-platform/4.10/architecture/admission-plug-ins.html#admission-plug-ins-default_admission-plug-ins
- https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/#namespaces-and-dns
- https://cwe.mitre.org/data/definitions/923.html