CVE-2024-11789
📋 TL;DR
A stack-based buffer overflow vulnerability in Fuji Electric Monitouch V-SFT V10 file parsing allows remote attackers to execute arbitrary code when users open malicious files. This affects installations of Fuji Electric Monitouch V-SFT software where users process untrusted V10 files. Attackers can achieve remote code execution in the context of the current process.
💻 Affected Systems
- Fuji Electric Monitouch V-SFT
📦 What is this software?
Monitouch V Sft by Fujielectric
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the affected system, potentially leading to data theft, lateral movement, or disruption of industrial operations.
Likely Case
Local privilege escalation or system compromise when users open malicious V10 files, potentially affecting the HMI/SCADA system integrity.
If Mitigated
Limited impact with proper network segmentation, user awareness training, and file validation controls preventing malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). The vulnerability is documented by ZDI with advisory ZDI-24-1615.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Fuji Electric security advisory for specific patched version
Vendor Advisory: https://www.fujielectric.com/security/ (check for specific advisory)
Restart Required: Yes
Instructions:
1. Check Fuji Electric security advisory for patch details
2. Download and install the latest version of Monitouch V-SFT
3. Restart affected systems
4. Verify installation and functionality
🔧 Temporary Workarounds
Restrict V10 file processing
windowsImplement application whitelisting to prevent execution of untrusted V10 files
Windows AppLocker: New-AppLockerPolicy -RuleType Path -Action Deny -Path "*.v10" -User Everyone
User awareness and training
allTrain users to only open V10 files from trusted sources
🧯 If You Can't Patch
- Implement network segmentation to isolate Monitouch systems from untrusted networks
- Deploy endpoint protection with memory protection and exploit mitigation features
🔍 How to Verify
Check if Vulnerable:
Check Monitouch V-SFT version against Fuji Electric's security advisory. If using V10 versions, assume vulnerable until patched.Check Version:
Check version in Monitouch V-SFT application interface or installation directory propertiesVerify Fix Applied:
Verify installed version matches or exceeds the patched version specified in Fuji Electric's advisory.📡 Detection & Monitoring
Log Indicators:
- Application crashes of Monitouch V-SFT
- Unusual process creation from Monitouch executable
- Failed file parsing attempts
Network Indicators:
- Unexpected network connections from Monitouch process
- File transfers to/from Monitouch systems
SIEM Query:
Process Creation where Image contains "Monitouch" AND ParentImage contains explorer.exe AND CommandLine contains *.v10