CVE-2022-29522
📋 TL;DR
A use-after-free vulnerability in the simulator module of Fuji Electric's V-SFT graphic editor allows attackers to execute arbitrary code or leak information by tricking users into opening malicious image files. This affects all V-SFT versions prior to 6.1.6.0. Users who open untrusted image files with this software are at risk.
💻 Affected Systems
- Fuji Electric V-SFT graphic editor
📦 What is this software?
V Server by Fujielectric
V Server by Fujielectric
V Sft by Fujielectric
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with remote code execution leading to data theft, ransomware deployment, or lateral movement within networks.
Likely Case
Local privilege escalation or information disclosure when users open specially crafted image files from untrusted sources.
If Mitigated
Limited impact with proper user training and file restrictions, though vulnerability remains present in software.
🎯 Exploit Status
Requires user to open malicious file. Use-after-free vulnerabilities typically require careful memory manipulation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v6.1.6.0
Vendor Advisory: https://monitouch.fujielectric.com/site/download-e/09vsft6_inf/Search.php
Restart Required: Yes
Instructions:
1. Download V-SFT v6.1.6.0 from Fuji Electric's website. 2. Uninstall previous version. 3. Install new version. 4. Restart system.
🔧 Temporary Workarounds
Restrict file types
windowsBlock opening of untrusted image files with V-SFT using application whitelisting or file extension restrictions.
User training
allTrain users not to open image files from untrusted sources with V-SFT software.
🧯 If You Can't Patch
- Isolate V-SFT systems from critical networks and implement strict network segmentation
- Implement application control to prevent execution of unauthorized code and monitor for suspicious file access
🔍 How to Verify
Check if Vulnerable:
Check V-SFT version in Help > About menu. If version is below 6.1.6.0, system is vulnerable.Check Version:
Check Help > About menu in V-SFT application interfaceVerify Fix Applied:
Confirm version shows 6.1.6.0 or higher in Help > About menu after update.📡 Detection & Monitoring
Log Indicators:
- Application crashes of V-SFT.exe
- Unusual file access patterns to image files
- Process creation from V-SFT with suspicious parameters
Network Indicators:
- Outbound connections from V-SFT process to unexpected destinations
- File transfers initiated after V-SFT execution
SIEM Query:
Process:V-SFT.exe AND (EventID:1000 OR ParentImage:*cmd.exe* OR ParentImage:*powershell.exe*)