Vulnerability Report

CVE-2019-18802

Title: Envoyproxy Envoy

Other

Proof Of Concept

No public PoC currently indexed for CVE-2019-18802.

CWE Category NVD-CWE-noinfo
Published Date Dec 13, 2019
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
2.46%

Vulnerability Summary

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.

Impacted Vendors

E
enphase 1
E
envoyproxy 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html https://blog.envoyproxy.io https://github.com/envoyproxy/envoy/commits/master https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4 https://groups.google.com/forum/#%21forum/envoy-users http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html https://blog.envoyproxy.io https://github.com/envoyproxy/envoy/commits/master https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4 https://groups.google.com/forum/#%21forum/envoy-users
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2019-18802 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.