CVE-2022-37350
📋 TL;DR
CVE-2022-37350 is a buffer overflow vulnerability in PDF-XChange Editor's handling of Collab objects that allows remote code execution. Attackers can exploit this by tricking users into opening malicious PDF files or visiting malicious web pages. All users of affected PDF-XChange Editor versions are at risk.
💻 Affected Systems
- PDF-XChange Editor
📦 What is this software?
Pdf Xchange Editor by Pdf Xchange
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the victim's computer, enabling data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Malware installation leading to data exfiltration, credential theft, or system disruption for individual users who open malicious PDFs.
If Mitigated
Limited impact with proper endpoint protection blocking malicious files and user training preventing suspicious PDF openings.
🎯 Exploit Status
Exploitation requires user interaction but is technically straightforward once malicious PDF is opened. ZDI advisory suggests reliable exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 9.3.361.0 and later
Vendor Advisory: https://www.tracker-software.com/product/pdf-xchange-editor/history
Restart Required: Yes
Instructions:
1. Download latest version from tracker-software.com 2. Run installer 3. Restart system 4. Verify version is 9.3.361.0 or higher
🔧 Temporary Workarounds
Disable JavaScript in PDF-XChange Editor
windowsPrevents exploitation by disabling JavaScript execution in PDF files
Settings > Preferences > JavaScript > Uncheck 'Enable JavaScript Actions'
Use alternative PDF viewer
windowsTemporarily use different PDF software until patched
🧯 If You Can't Patch
- Implement application whitelisting to block PDF-XChange Editor execution
- Deploy endpoint protection with behavioral analysis to detect exploit attempts
🔍 How to Verify
Check if Vulnerable:
Open PDF-XChange Editor, go to Help > About, check if version is below 9.3.361.0Check Version:
Not applicable - check via GUI Help > About menuVerify Fix Applied:
Confirm version is 9.3.361.0 or higher in Help > About dialog📡 Detection & Monitoring
Log Indicators:
- Process creation from PDF-XChange Editor with unusual command lines
- Crash reports from PDF-XChange Editor
Network Indicators:
- Outbound connections from PDF-XChange Editor to suspicious domains
SIEM Query:
process_name:"PDFXEdit.exe" AND (process_cmdline:*powershell* OR process_cmdline:*cmd.exe*)