NuytsTech Security

CVE-2019-9901

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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.

Date published : 2019-04-25

https://github.com/envoyproxy/envoy/issues/6435

https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcx5-93pw-jw2w

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