CVE-2024-31904
📋 TL;DR
This vulnerability in IBM App Connect Enterprise allows authenticated users to trigger an uncaught exception, causing a denial of service (DoS) condition. It affects integration nodes in versions 11.0.0.1 through 11.0.0.25 and 12.0.1.0 through 12.0.12.0. Organizations running these versions with authenticated user access are at risk.
💻 Affected Systems
- IBM App Connect Enterprise
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete unavailability of the integration node, disrupting all business processes and data flows that depend on it.
Likely Case
Temporary service disruption requiring node restart, causing business process interruptions and potential data loss.
If Mitigated
Minimal impact with proper monitoring and rapid restart capabilities in place.
🎯 Exploit Status
Requires authenticated access but triggering the uncaught exception appears straightforward based on CWE-248 description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply IBM App Connect Enterprise 11.0.0.26 or later, or 12.0.13.0 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/7154607
Restart Required: Yes
Instructions:
1. Download the fix from IBM Fix Central. 2. Apply the fix following IBM's installation instructions. 3. Restart the integration node. 4. Verify the fix is applied.
🔧 Temporary Workarounds
Restrict User Access
allLimit authenticated user access to integration nodes to only necessary administrative accounts.
Implement Monitoring and Auto-restart
allSet up monitoring for node crashes and implement automated restart procedures.
🧯 If You Can't Patch
- Implement strict access controls to limit which authenticated users can interact with integration nodes.
- Deploy redundant nodes with load balancing to maintain service availability if one node goes down.
🔍 How to Verify
Check if Vulnerable:
Check the IBM App Connect Enterprise version using the mqsiversion command or via the IBM Integration Console.Check Version:
mqsiversionVerify Fix Applied:
Verify the version is 11.0.0.26+ or 12.0.13.0+ and test node stability under normal authenticated operations.📡 Detection & Monitoring
Log Indicators:
- Integration node crash logs
- Uncaught exception errors in system logs
- Unexpected node termination events
Network Indicators:
- Sudden loss of connectivity to integration services
- Failed API calls to integration endpoints
SIEM Query:
source="app_connect_logs" AND ("uncaught exception" OR "node crash" OR "denial of service")