CVE-2022-23400
📋 TL;DR
A stack-based buffer overflow vulnerability in Accusoft ImageGear's PSD file parser allows attackers to cause denial of service or potentially leak information by providing malicious files. This affects applications using ImageGear 19.10 for PSD file processing.
💻 Affected Systems
- Accusoft ImageGear
📦 What is this software?
Imagegear by Accusoft
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise if the application processes attacker-controlled PSD files with insufficient memory protections.
Likely Case
Denial of service (application crash) or information disclosure through memory leaks when processing malicious PSD files.
If Mitigated
Limited impact with proper sandboxing, memory protections (ASLR/DEP), and file validation in place.
🎯 Exploit Status
Exploitation requires delivering a malicious PSD file to a vulnerable application. No public exploit code is available, but the vulnerability details are published.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 19.11 or later
Vendor Advisory: https://www.accusoft.com/products/imagegear/
Restart Required: Yes
Instructions:
1. Download ImageGear 19.11 or later from Accusoft. 2. Uninstall current ImageGear 19.10. 3. Install the updated version. 4. Restart any applications using ImageGear.
🔧 Temporary Workarounds
Disable PSD file processing
allConfigure applications to reject or not process PSD files through ImageGear
Implement file validation
allAdd server-side validation to reject malformed PSD files before processing
🧯 If You Can't Patch
- Implement strict file upload controls and validation for PSD files
- Run ImageGear in sandboxed environments with limited privileges
🔍 How to Verify
Check if Vulnerable:
Check if ImageGear 19.10 is installed and used by applications for PSD processingCheck Version:
Check application dependencies or contact vendor for version informationVerify Fix Applied:
Verify ImageGear version is 19.11 or later and test with known malicious PSD samples📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing PSD files
- Memory access violation errors in logs
Network Indicators:
- Unusual PSD file uploads to web applications
- Large or malformed PSD file transfers
SIEM Query:
source="application_logs" AND ("ImageGear" OR "PSD") AND ("crash" OR "access violation" OR "buffer overflow")