CVE-2022-37360
📋 TL;DR
CVE-2022-37360 is an out-of-bounds read vulnerability in PDF-XChange Editor's EMF file parser that allows remote attackers to disclose sensitive information. Users who open malicious EMF files or visit malicious web pages are affected. This vulnerability can be combined with other exploits to potentially execute arbitrary code.
💻 Affected Systems
- PDF-XChange Editor
📦 What is this software?
Pdf Xchange Editor by Pdf Xchange
⚠️ Risk & Real-World Impact
Worst Case
Attackers combine this information disclosure with other vulnerabilities to achieve remote code execution in the context of the current user, potentially leading to full system compromise.
Likely Case
Sensitive memory contents are disclosed, which could include passwords, encryption keys, or other application data that could facilitate further attacks.
If Mitigated
With proper security controls, the impact is limited to information disclosure without code execution, though sensitive data may still be exposed.
🎯 Exploit Status
User interaction required (opening malicious file or visiting malicious page). Exploit requires combining with other vulnerabilities for code execution.
🛠️ 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 after installation
🔧 Temporary Workarounds
Disable EMF file processing
windowsPrevent PDF-XChange Editor from processing EMF files through registry modification
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Tracker Software\PDFXEditor\3.0\Settings\FileOpen\EMF]
"bEnabled"=dword:00000000
🧯 If You Can't Patch
- Restrict user permissions to prevent execution of untrusted EMF files
- Implement application whitelisting to block PDF-XChange Editor from running untrusted files
🔍 How to Verify
Check if Vulnerable:
Check Help > About in PDF-XChange Editor for version numberCheck Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify version is 9.3.361.0 or higher in Help > About📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing EMF files
- Unexpected memory access errors in application logs
Network Indicators:
- Downloads of EMF files from untrusted sources
- Network traffic to known malicious domains hosting EMF files
SIEM Query:
source="*pdf-xchange*" AND (event_type="crash" OR error="*memory*" OR file_extension="emf")