CVE-2024-11316
📋 TL;DR
This CVE describes a file size check vulnerability in ABB ASPECT, NEXUS, and MATRIX series products that allows attackers to bypass file size limits. This could lead to resource exhaustion or unexpected behavior in affected systems. Organizations using these specific ABB industrial control system products are at risk.
💻 Affected Systems
- ABB ASPECT - Enterprise
- ABB NEXUS Series
- ABB MATRIX Series
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system resource exhaustion leading to denial of service, potentially disrupting industrial operations and causing production downtime.
Likely Case
Partial system degradation or unexpected behavior due to oversized files being processed, affecting specific functionality within the control system.
If Mitigated
Minimal impact with proper network segmentation and file validation controls in place.
🎯 Exploit Status
File size bypass vulnerabilities typically require some level of access to upload or submit files to the system.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://search.abb.com/library/Download.aspx?DocumentID=9AKK108469A7497&LanguageCode=en&DocumentPartId=&Action=Launch
Restart Required: Yes
Instructions:
1. Review ABB advisory for specific patch details. 2. Apply vendor-provided patches. 3. Restart affected systems. 4. Verify patch application.
🔧 Temporary Workarounds
Implement file size validation
allAdd additional file size checks at network perimeter or application level
Network segmentation
allIsolate affected systems from untrusted networks
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems
- Deploy additional file validation controls at network perimeter devices
🔍 How to Verify
Check if Vulnerable:
Check if running affected products at version 3.08.02. Review system logs for oversized file processing attempts.Check Version:
Check product documentation for version query commands specific to ABB systemsVerify Fix Applied:
Verify patch version against vendor advisory. Test file size limits to ensure proper validation.📡 Detection & Monitoring
Log Indicators:
- Unusually large file upload attempts
- System resource exhaustion alerts
- File processing errors
Network Indicators:
- Large file transfers to affected systems
- Unusual traffic patterns to industrial control interfaces
SIEM Query:
source="ABB_System" AND (file_size>threshold OR resource_usage>normal)