CVE-2023-42067
📋 TL;DR
This vulnerability in PDF-XChange Editor allows remote attackers to read sensitive information from memory when processing malicious JB2 files. Attackers can leverage this information disclosure with other vulnerabilities to potentially execute arbitrary code. Users who open untrusted PDF files containing JB2 images are affected.
💻 Affected Systems
- PDF-XChange Editor
📦 What is this software?
Pdf Tools by Pdf Xchange
Pdf Xchange Editor by Pdf Xchange
⚠️ Risk & Real-World Impact
Worst Case
Information disclosure combined with other vulnerabilities could lead to arbitrary code execution in the context of the current user process.
Likely Case
Sensitive memory contents disclosure, potentially revealing credentials, encryption keys, or other confidential data.
If Mitigated
Limited information disclosure without code execution if proper sandboxing and memory protections are in place.
🎯 Exploit Status
Requires user interaction to open malicious file. Exploit requires combining with other vulnerabilities for code execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.1.1.380 and later
Vendor Advisory: https://www.tracker-software.com/support/security-bulletins.html
Restart Required: Yes
Instructions:
1. Download latest version from tracker-software.com 2. Run installer 3. Restart system 4. Verify version is 10.1.1.380 or higher
🔧 Temporary Workarounds
Disable JB2 file processing
windowsConfigure PDF-XChange Editor to block JB2 file processing if not required
Application sandboxing
windowsRun PDF-XChange Editor in sandboxed environment to limit impact
🧯 If You Can't Patch
- Restrict user permissions to limit potential damage from code execution
- Implement application whitelisting to prevent unauthorized PDF viewers
🔍 How to Verify
Check if Vulnerable:
Check Help > About in PDF-XChange Editor for version numberCheck Version:
Not applicable - check via GUI Help > AboutVerify Fix Applied:
Confirm version is 10.1.1.380 or higher in Help > About📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing JB2 files
- Unusual memory access patterns
Network Indicators:
- Downloads of PDF files with JB2 images from untrusted sources
SIEM Query:
EventID=1000 OR EventID=1001 Source="PDF-XChange Editor" AND Keywords="Faulting module name"