CVE Vulnerability

CVE-2019-9901

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.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

10 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history Release Notes Vendor Advisory
https://groups.google.com/forum/#!topic/envoy-announce/VoHfnDqZiAM Patch Third Party Advisory
https://github.com/envoyproxy/envoy/issues/6435 Mitigation Issue Tracking
https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcx5-93pw-jw2w
Configurations

Configuration 1

cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
Information

Published : 2019-04-25 04:29

Updated : 2020-08-24 05:37

NVD link : CVE-2019-9901

Mitre link : CVE-2019-9901

Products Affected
No products.
CWE
CWE-706