CVE-2024-23326

Envoy is a cloud-native, open source edge and service proxy. A theoretical request smuggling vulnerability exists through Envoy if a server can be tricked into adding an upgrade header into a response. Per RFC https://www.rfc-editor.org/rfc/rfc7230#section-6.7 a server sends 101 when switching protocols. Envoy incorrectly accepts a 200 response from a server when requesting a protocol upgrade, but 200 does not indicate protocol switch. This opens up the possibility of request smuggling through Envoy if the server can be tricked into adding the upgrade header to the response.

CVSS v3.0 8.2 HIGH

8.2^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/envoyproxy/envoy/security/advisories/GHSA-vcf8-7238-v74c	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::

History

12 Jun 2024, 15:32

Type	Values Removed	Values Added
References	~~() https://github.com/envoyproxy/envoy/security/advisories/GHSA-vcf8-7238-v74c -~~	() https://github.com/envoyproxy/envoy/security/advisories/GHSA-vcf8-7238-v74c - Vendor Advisory
CWE		CWE-444
CPE		cpe:2.3:a:envoyproxy:envoy::::::::
First Time		Envoyproxy envoy Envoyproxy
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.2

04 Jun 2024, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-06-04 21:15

Updated : 2024-06-12 15:32

NVD link : CVE-2024-23326

Mitre link : CVE-2024-23326

JSON object : View

Products Affected

envoyproxy

envoy

CWE

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

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