Styra Open Policy Agent (OPA) Gatekeeper through 3.7.0 mishandles concurrency, sometimes resulting in incorrect access control. The data replication mechanism allows policies to access the Kubernetes cluster state. During data replication, OPA/Gatekeeper does not wait for the replication to finish before processing a request, which might cause inconsistencies between the replicated resources in OPA/Gatekeeper and the resources actually present in the cluster. Inconsistency can later be reflected in a policy bypass. NOTE: the vendor disagrees that this is a vulnerability, because Kubernetes states are only eventually consistent
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-11-17T18:26:13

Updated: 2024-08-04T04:10:16.943Z

Reserved: 2021-11-17T00:00:00

Link: CVE-2021-43979

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-11-17T19:15:09.220

Modified: 2024-11-21T06:30:08.037

Link: CVE-2021-43979

cve-icon Redhat

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