Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass. The Authentication Policy exact-path matching logic can allow unauthorized access to HTTP paths even if they are configured to be only accessed after presenting a valid JWT token. For example, an attacker can add a ? or # character to a URI that would otherwise satisfy an exact-path match.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Istio | Istio | 1.3 (including) | 1.3.7 (including) |
| Istio | Istio | 1.4.0 (including) | 1.4.3 (including) |
| OpenShift Service Mesh 1.0 | RedHat | servicemesh-proxy-0:1.0.7-1.el8 | * |