medium6.5
CVE-2019-9901
Envoy 1.9.0 and before does not normalize HTTP URL paths.
Impact
Envoy 1.9.0 and before does not normalize HTTP URL paths. A remote attacker may craft a relative path, e.g., something/../admin, to bypass access control, e.g., a block on /admin. A backend server could then interpret the non-normalized path and provide an attacker access beyond the scope provided for by the access control policy.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Envoyproxy | Envoy | through 1.9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/envoyproxy/envoy/issues/6435
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcx5-93pw-jw2w
- https://groups.google.com/forum/#%21topic/envoy-announce/VoHfnDqZiAM
- https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history
- https://github.com/envoyproxy/envoy/issues/6435
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcx5-93pw-jw2w
- https://groups.google.com/forum/#%21topic/envoy-announce/VoHfnDqZiAM
- https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history