QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2024-23326

Back to search

CVE-2024-23326

Published: Jun 4, 2024

Modified: Aug 1, 2024

PUBLISHED

CVSS v3.1

5.9

MEDIUM

Description

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.

VendorProductVersions

envoyproxy

envoy

affected
>= 1.13.0, <= 1.30.1
affected
>= 1.29.0, <= 1.29.4
affected
>= 1.28.0, <= 1.28.3
affected
<= 1.27.5

Weaknesses (CWE)

CWE-391

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now