CVE-2023-29280
📋 TL;DR
Adobe Substance 3D Painter versions 8.3.0 and earlier contain an out-of-bounds read vulnerability when parsing malicious files. An attacker can exploit this to execute arbitrary code with the privileges of the current user. This affects all users who open untrusted files with vulnerable versions of the software.
💻 Affected Systems
- Adobe Substance 3D Painter
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise through remote code execution leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation leading to user account compromise and potential data exfiltration from the affected system.
If Mitigated
Limited impact with proper file validation and user awareness preventing malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction to open malicious files. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.3.1 or later
Vendor Advisory: https://helpx.adobe.com/security/products/substance3d_painter/apsb23-29.html
Restart Required: Yes
Instructions:
1. Open Adobe Substance 3D Painter. 2. Go to Help > Check for Updates. 3. Install available updates. 4. Restart the application.
🔧 Temporary Workarounds
Restrict file processing
allConfigure application to only open trusted files from known sources
User awareness training
allTrain users to avoid opening untrusted Substance 3D Painter files
🧯 If You Can't Patch
- Implement application whitelisting to prevent execution of vulnerable versions
- Use network segmentation to isolate systems running vulnerable software
🔍 How to Verify
Check if Vulnerable:
Check Help > About in Adobe Substance 3D Painter for version number. If version is 8.3.0 or earlier, system is vulnerable.Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify version is 8.3.1 or later in Help > About menu.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing files
- Unusual file access patterns from Substance 3D Painter
Network Indicators:
- Downloads of suspicious Substance 3D Painter files from untrusted sources
SIEM Query:
EventID=1000 AND Source='Substance 3D Painter' AND Description contains 'exception' OR 'crash'