National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-9901 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 10.0 CRITICAL
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Nist CVSS score does not match with CNA score
CNA:  MITRE
Base Score: 6.5 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-284 Improper Access Control NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.9.0


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9901
NVD Published Date:
04/25/2019
NVD Last Modified:
10/09/2019