CVE-2020-17418
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code by exploiting a buffer overflow in Foxit Studio Photo's EZIX file handling. Attackers can achieve this by tricking users into opening malicious EZIX files or visiting malicious web pages. Users of Foxit Studio Photo 3.6.6.922 are affected.
💻 Affected Systems
- Foxit Studio Photo
📦 What is this software?
Foxit Studio Photo by Foxitsoftware
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the affected system, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Malware installation leading to data exfiltration, credential theft, or system disruption for individual users who open malicious files.
If Mitigated
Limited impact with proper application sandboxing and user privilege restrictions, potentially resulting in application crash without code execution.
🎯 Exploit Status
Exploitation requires user interaction but is technically straightforward once malicious file is opened.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Later versions than 3.6.6.922
Vendor Advisory: https://www.foxitsoftware.com/support/security-bulletins.html
Restart Required: Yes
Instructions:
1. Download latest version from Foxit website
2. Uninstall current version
3. Install updated version
4. Restart system
🔧 Temporary Workarounds
Disable EZIX file association
windowsRemove EZIX file type association with Foxit Studio Photo to prevent automatic opening
Control Panel > Default Programs > Associate a file type or protocol with a program > Select .ezix > Change program > Choose different application
Application sandboxing
windowsRun Foxit Studio Photo in restricted environment
🧯 If You Can't Patch
- Block EZIX files at network perimeter and email gateways
- Implement application whitelisting to prevent unauthorized execution
🔍 How to Verify
Check if Vulnerable:
Check Help > About in Foxit Studio Photo for version 3.6.6.922Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify installed version is newer than 3.6.6.922 in Help > About📡 Detection & Monitoring
Log Indicators:
- Application crashes with memory access violations
- Unexpected process creation from Foxit Studio Photo
Network Indicators:
- Downloads of EZIX files from untrusted sources
- Outbound connections after opening EZIX files
SIEM Query:
Process creation where parent_process contains 'FoxitStudioPhoto.exe' AND command_line contains '.ezix'