Security Bulletin: IBM Event Streams is vulnerable to HTTP request smuggling (CVE-2023-40167)

Summary

IBM Event Streams is vulnerable to HTTP request smuggling due to Jetty component. Jetty provides client-side libraries that allow us to embed an HTTP or WebSocket client in our applications.

Vulnerability Details

CVEID:CVE-2023-40167
**DESCRIPTION:**Jetty is vulnerable to HTTP request smuggling, caused by improper parsing of the HTTP/1 request header. By sending a specially crafted request, a remote attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/266353 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading

IBM Event Streams (Continuous Delivery)

• Upgrade to IBM Event Streams 11.3.1 by following the upgrading and migrating documentation.

Workarounds and Mitigations

None