CVE-2022-33318
📋 TL;DR
This CVE describes a critical deserialization vulnerability in multiple Mitsubishi Electric industrial control software products. Remote unauthenticated attackers can execute arbitrary malicious code by sending specially crafted packets to vulnerable servers. Affected organizations include those using GENESIS64, ICONICS Suite, GENESIS32, or MC Works64 software for industrial automation and monitoring.
💻 Affected Systems
- Mitsubishi Electric GENESIS64
- Mitsubishi Electric Iconics Digital Solutions GENESIS64
- Mitsubishi Electric ICONICS Suite
- Mitsubishi Electric Iconics Digital Solutions ICONICS Suite
- Mitsubishi Electric GENESIS32
- Mitsubishi Electric Iconics Digital Solutions GENESIS32
- Mitsubishi Electric MC Works64
📦 What is this software?
Genesis64 by Iconics
Genesis64 by Iconics
Mc Works64 by Mitsubishielectric
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code, potentially leading to industrial process disruption, data theft, or ransomware deployment across critical infrastructure.
Likely Case
Remote code execution enabling attackers to install malware, pivot to other systems, or disrupt industrial operations.
If Mitigated
Limited impact if systems are isolated behind firewalls with strict network segmentation and proper access controls.
🎯 Exploit Status
The vulnerability requires sending specially crafted packets but is unauthenticated and remote, making exploitation relatively straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: GENESIS64/ICONICS Suite: 10.97.2 or later, GENESIS32: Contact vendor, MC Works64: Contact vendor
Vendor Advisory: https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-008_en.pdf
Restart Required: Yes
Instructions:
1. Download patches from Mitsubishi Electric support portal. 2. Apply patches according to vendor instructions. 3. Restart affected systems. 4. For GENESIS32 and MC Works64, contact vendor for specific update guidance.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected systems from untrusted networks using firewalls.
Restrict Network Access
allConfigure firewall rules to only allow necessary connections to vulnerable ports.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable systems
- Deploy intrusion detection systems to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check software version against affected versions list. Review system logs for unusual network activity on relevant ports.Check Version:
Check version through software interface or consult vendor documentation for version checking procedure.Verify Fix Applied:
Verify software version is updated to patched version. Test system functionality after patch application.📡 Detection & Monitoring
Log Indicators:
- Unusual network connections to vulnerable ports
- Unexpected process execution
- System crashes or instability
Network Indicators:
- Suspicious packets to GENESIS/ICONICS service ports
- Unusual outbound connections from affected systems
SIEM Query:
source_ip IN (external_ips) AND dest_port IN (vulnerable_ports) AND protocol=tcp🔗 References
- https://jvn.jp/vu/JVNVU96480474/index.html
- https://www.cisa.gov/news-events/ics-advisories/icsa-22-202-04
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-008_en.pdf
- https://jvn.jp/vu/JVNVU96480474/index.html
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-008_en.pdf
