CVE Vulnerability

CVE-2019-18802

An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat "header-value " as a different string from "header-value" so for example with the Host header "example.com " one could bypass "example.com" matchers.

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

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/envoyproxy/envoy/commits/master Patch
https://blog.envoyproxy.io Product
https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4 Exploit Third Party Advisory
https://groups.google.com/forum/#!forum/envoy-users Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html
Configurations

Configuration 1

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

Published : 2019-12-13 01:15

Updated : 2020-08-24 05:37

NVD link : CVE-2019-18802

Mitre link : CVE-2019-18802

Products Affected
No products.
CWE
NVD-CWE-noinfo