Amazon Linux AMI 2: CVE-2024-23326: Security patch for ecs-service-connect-agent (ALASECS-2024-037)

Amazon Linux AMI 2: CVE-2024-23326: Security patch for ecs-service-connect-agent (ALASECS-2024-037)

Severity

9

CVSS

(AV:N/AC:L/Au:N/C:C/I:P/A:N)

Published

06/04/2024

Created

06/26/2024

Added

06/26/2024

Modified

01/28/2025

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.

Solution(s)

• amazon-linux-ami-2-upgrade-ecs-service-connect-agent

References

• https://attackerkb.com/topics/cve-2024-23326
• AL2/ALASECS-2024-037
• CVE - 2024-23326