GHSA-hqxw-mm44-gc4r
Istio Fragments in Path May Lead to Authorization Policy Bypass
Quick fix
GHSA-hqxw-mm44-gc4r — istio.io/istio: upgrade to the fixed version with the command below.
go get istio.io/istio@v1.9.8Details
### Impact 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 * Istio 1.11.1 and above * Istio 1.10.4 and above * Istio 1.9.8 and above
### Workarounds A Lua filter may be written to normalize the path. This is similar to the Path normalization presented in the [Security Best Practices](https://istio.io/latest/docs/ops/best-practices/security/#case-normalization) guide.
### References More details can be found in the [Istio Security Bulletin](https://istio.io/latest/news/security/istio-security-2021-008)
### For more information If you have any questions or comments about this advisory, please email us at istio-security-vulnerability-reports@googlegroups.com
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