CVE-2021-39156
8.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Summary
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 Istio’s 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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| istio | istio | < 1.9.8 | affected |
| istio | istio | >= 1.10.0, < 1.10.4 | affected |
| istio | istio | >= 1.11.0, < 1.11.1 | affected |
Weaknesses
- CWE-863: CWE-863: Incorrect Authorization
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/istio/istio/security/advisories/GHSA-hqxw-mm44-gc4r
- https://istio.io/latest/news/security/istio-security-2021-008
References
- https://github.com/istio/istio/security/advisories/GHSA-hqxw-mm44-gc4r
- https://istio.io/latest/news/security/istio-security-2021-008
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