CVE-2021-39156
24.08.2021, 23:15
Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Istio 1.11.0, 1.10.3 and below, and 1.9.7 and below contain a remotely exploitable vulnerability where an HTTP request with `#fragment` in the path may bypass Istios URI path based authorization policies. Patches are available in Istio 1.11.1, Istio 1.10.4 and Istio 1.9.8. As a work around a Lua filter may be written to normalize the path.Enginsight
| Vendor | Product | Version |
|---|---|---|
| istio | istio | 𝑥 < 1.9.8 |
| istio | istio | 1.10.0 ≤ 𝑥 < 1.10.3 |
| istio | istio | 1.11.0 ≤ 𝑥 < 1.11.1 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration
- CWE-863 - Incorrect AuthorizationThe software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
- CWE-706 - Use of Incorrectly-Resolved Name or ReferenceThe software uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.