CVE-2022-30269
📋 TL;DR
Motorola ACE1000 RTUs lack firmware signing for application images, relying only on insecure checksums. This allows attackers to upload malicious applications via web UI or SSH/SFTP, potentially compromising industrial control systems. Organizations using ACE1000 RTUs through May 2022 are affected.
💻 Affected Systems
- Motorola ACE1000 RTU
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of industrial control systems leading to physical damage, operational disruption, or safety incidents through malicious firmware installation.
Likely Case
Unauthorized application installation allowing data theft, system manipulation, or persistence for future attacks on industrial networks.
If Mitigated
Limited impact with proper network segmentation, application whitelisting, and monitoring preventing unauthorized uploads.
🎯 Exploit Status
Exploitation requires access to upload interfaces but uses standard protocols (web upload, SSH/SFTP) with no cryptographic verification.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2022-05-02
Vendor Advisory: https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-06
Restart Required: Yes
Instructions:
1. Contact Motorola Solutions for updated firmware. 2. Backup configurations. 3. Apply firmware update via secure channel. 4. Verify integrity of installed applications. 5. Restart RTU as required.
🔧 Temporary Workarounds
Network Segmentation
allIsolate ACE1000 RTUs from untrusted networks and restrict access to management interfaces.
Application Whitelisting
allImplement strict controls on which applications can be installed and by whom.
🧯 If You Can't Patch
- Implement strict network access controls to RTU management interfaces
- Monitor for unauthorized application uploads and file changes
🔍 How to Verify
Check if Vulnerable:
Check RTU firmware version - if date is 2022-05-02 or earlier, system is vulnerable.Check Version:
Check via ACE1000 web interface or CLI using manufacturer-specific commandsVerify Fix Applied:
Verify firmware version is after 2022-05-02 and test application upload with signed verification.📡 Detection & Monitoring
Log Indicators:
- Unauthorized application upload attempts
- File transfer via SSH/SFTP to RTU
- Application installation events
Network Indicators:
- Unexpected traffic to RTU web interface (port 80/443)
- SSH/SFTP connections to RTU from unauthorized sources
SIEM Query:
source_ip=* dest_ip=RTU_IP (port:22 OR port:80 OR port:443) action=upload OR file_transfer