Note:
This project will be discontinued after December 13, 2021. [more]
2019-04-25
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.
Products | Envoy |
Type | Use of Incorrectly-Resolved Name or Reference (CWE-706) |
First patch | - None (likely due to unavailable code) |
Links |
• https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcx5-93pw-jw2w • https://groups.google.com/forum/#%21topic/envoy-announce/VoHfnDqZiAM • https://github.com/envoyproxy/envoy/issues/6435 |