CVE-2022-30272
📋 TL;DR
CVE-2022-30272 allows attackers to upload malicious firmware to Motorola ACE1000 RTUs due to lack of cryptographic authentication. This affects organizations using Motorola ACE1000 RTUs through May 2022 for industrial control systems. Attackers can compromise device integrity and potentially gain full control.
💻 Affected Systems
- Motorola ACE1000 RTU
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to disrupt industrial operations, manipulate sensor data, or use the device as an entry point into critical infrastructure networks.
Likely Case
Unauthorized firmware installation leading to device malfunction, data manipulation, or persistent backdoor access to industrial control systems.
If Mitigated
Limited impact with proper network segmentation and monitoring, though device integrity remains at risk if firmware updates are attempted.
🎯 Exploit Status
Exploitation requires network access to Web UI or SSH interfaces but no authentication for firmware upload. Attackers can craft malicious firmware packages.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2022-05-02 with firmware signing implementation
Vendor Advisory: https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-06
Restart Required: Yes
Instructions:
1. Contact Motorola Solutions for updated firmware with cryptographic signing. 2. Apply firmware update through STS software suite or Easy Configurator. 3. Verify firmware integrity using new authentication mechanisms. 4. Restart affected RTUs.
🔧 Temporary Workarounds
Network Segmentation
allIsolate ACE1000 RTUs from untrusted networks and restrict access to update interfaces
Access Control Lists
linuxImplement strict firewall rules to limit access to Web UI (80/443) and SSH (22) ports
iptables -A INPUT -p tcp --dport 22 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j DROP
iptables -A INPUT -p tcp --dport 80 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate RTUs from all untrusted networks
- Monitor network traffic to Web UI and SSH interfaces for unauthorized firmware update attempts
🔍 How to Verify
Check if Vulnerable:
Check if ACE1000 RTU firmware version is dated before or on 2022-05-02. Review firmware update logs for unsigned package installations.Check Version:
Check device Web UI or SSH interface for firmware version informationVerify Fix Applied:
Verify firmware version is after 2022-05-02 and attempt firmware update with test package to confirm signing requirement.📡 Detection & Monitoring
Log Indicators:
- Unauthorized firmware update attempts in system logs
- SSH connections to port 22 followed by file transfers
- Web UI access to firmware upload endpoints
Network Indicators:
- Unexpected .hex or RPM file transfers to RTU IP addresses
- Firmware update traffic outside maintenance windows
SIEM Query:
source="ace1000_logs" AND (event="firmware_update" OR event="package_install")