CVE-2022-0902
📋 TL;DR
This CVE combines path traversal and command injection vulnerabilities in ABB flow computer and remote controller products. Attackers can exploit these flaws to execute arbitrary code on affected systems, potentially compromising industrial control systems. Organizations using ABB RMC-100, XIO, XFCG5, XRCG5, uFLOG5, or UDC products are affected.
💻 Affected Systems
- RMC-100 (Standard)
- RMC-100-LITE
- XIO
- XFCG5
- XRCG5
- uFLOG5
- UDC
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary commands, potentially disrupting industrial processes, stealing sensitive data, or causing physical damage to equipment.
Likely Case
Unauthorized access to system files and execution of limited commands, potentially leading to data exfiltration or system manipulation.
If Mitigated
Limited impact if systems are properly segmented, monitored, and have restricted network access.
🎯 Exploit Status
Combination of path traversal and command injection suggests attackers need to chain vulnerabilities, but CVSS 8.1 indicates significant exploitability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to ABB security advisory for specific patched versions
Vendor Advisory: https://search.abb.com/library/Download.aspx?DocumentID=9AKK108467A0927&LanguageCode=en&DocumentPartId=&Action=Launch
Restart Required: Yes
Instructions:
1. Download firmware update from ABB portal. 2. Backup current configuration. 3. Apply firmware update following ABB documentation. 4. Restart device. 5. Verify update successful.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected devices from untrusted networks and internet access
Access Control Restrictions
allImplement strict network access controls and firewall rules to limit communication to only necessary systems
🧯 If You Can't Patch
- Implement strict network segmentation and isolate affected devices in dedicated VLANs
- Deploy intrusion detection systems and monitor for unusual command execution or file access patterns
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against ABB security advisory. Devices running unpatched firmware are vulnerable.Check Version:
Device-specific command via ABB configuration interface or web interfaceVerify Fix Applied:
Verify firmware version matches patched version specified in ABB advisory and test for path traversal/command injection.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns
- Unexpected command execution
- Access to restricted directories
Network Indicators:
- Unusual network traffic to/from industrial control devices
- Attempts to access path traversal patterns
SIEM Query:
source="industrial_device" AND (event="file_access" OR event="command_execution") AND (path="../" OR command="*;*" OR command="*|*")