HTTP response splitting in undici - CVE-2023-23936

Vulnerability identifier: #VU72403

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2023-23936

CWE-ID: CWE-113

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
undici
IBM Business Automation Workflow
Automation Assets in IBM Cloud Pak for Integration (CP4I)
IBM Watson Discovery for IBM Cloud Pak for Data
App Connect Enterprise Certified Container
DB2 Warehouse on Cloud Pak for Data
DB2 on Cloud Pak for Data
Cognos Dashboards on Cloud Pak for Data
Platform Navigator in IBM Cloud Pak for Integration (CP4I)
Db2 Graph
Dell EMC Streaming Data Platform
IBM Planning Analytics Workspace
Cloud Pak for Network Automation
Answer Retrieval for Watson Discovery On Prem
IBM Cloud Pak for Watson AIOps
Watson CP4D Data Stores
Oracle Linux
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Enterprise Storage
Anolis OS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Oracle Solaris
Web and Scripting Module
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Server 15 SP3 LTSS
openSUSE Leap
Fedora
IBM Cloud Pak for Multicloud Management
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
nodejs-nodemon (Red Hat package)
nodejs-nodemon
npm
nodejs (Red Hat package)
nodejs-full-i18n
nodejs-devel
nodejs
nodejs-docs
nodejs16
nodejs16-devel
npm16
nodejs16-debugsource
nodejs16-debuginfo
nodejs16-docs
corepack16
nodejs18
nodejs18-devel
npm18
nodejs18-debuginfo
nodejs18-debugsource
nodejs18-docs
corepack18
nodejs20
nodejs-packaging
IBM Cognos Controller
IBM QRadar Data Synchronization App
Node.js
Voice Gateway

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to software does not correctly process CRLF character sequences when handling HTTP "Host" header. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.

Install updates from vendor's website.

• https://github.com/nodejs/undici/releases/tag/v5.19.1
• https://github.com/nodejs/undici/commit/a2eff05401358f6595138df963837c24348f2034
• https://github.com/nodejs/undici/security/advisories/GHSA-5r9g-qh6m-jxff
• https://hackerone.com/reports/1820955