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
Metrics
Affected Vendors & Products
References
History
No history.
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
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-11-17T19:15:09.220
Modified: 2024-11-21T06:30:08.037
Link: CVE-2021-43979
Redhat
No data.