CVE-2024-11575
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code by tricking users into opening malicious DXF files in IrfanView. Attackers can gain full control of the affected system through memory corruption. All IrfanView users who open untrusted DXF files are at risk.
💻 Affected Systems
- IrfanView
📦 What is this software?
Irfanview by Irfanview
Irfanview by Irfanview
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining the same privileges as the logged-in user, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Malware installation or data exfiltration when users open DXF files from untrusted sources like email attachments or downloads.
If Mitigated
Limited impact with proper application sandboxing and user awareness preventing malicious file execution.
🎯 Exploit Status
User interaction required (opening malicious file). Exploit development is straightforward given the memory corruption nature.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: IrfanView 4.67
Vendor Advisory: https://www.irfanview.com/main_history.htm
Restart Required: No
Instructions:
1. Download IrfanView 4.67 or later from official website. 2. Run installer. 3. Follow installation prompts. 4. Verify version in Help > About.
🔧 Temporary Workarounds
Disable DXF file association
windowsRemove IrfanView as default handler for DXF files to prevent automatic exploitation.
Control Panel > Default Programs > Set Default Programs > Select IrfanView > Choose defaults for this program > Uncheck .dxf
Application sandboxing
windowsRun IrfanView in restricted environment to limit exploit impact.
🧯 If You Can't Patch
- Block DXF files at email/network perimeter
- Implement user training to avoid opening untrusted DXF files
🔍 How to Verify
Check if Vulnerable:
Check IrfanView version in Help > About menu. If version is below 4.67, system is vulnerable.Check Version:
irfanview.exe /?Verify Fix Applied:
Confirm version is 4.67 or higher in Help > About menu.📡 Detection & Monitoring
Log Indicators:
- IrfanView crash logs with DXF-related errors
- Windows Application Event Logs showing IrfanView crashes
Network Indicators:
- Inbound DXF files from untrusted sources
- Outbound connections after DXF file processing
SIEM Query:
source="*irfanview*" AND (event_type="crash" OR file_extension=".dxf")