CVE-2023-29284
📋 TL;DR
This CVE describes a stack-based buffer overflow vulnerability in Adobe Substance 3D Painter that allows arbitrary code execution when a user opens a malicious file. Attackers can exploit this to run code with the victim's privileges, potentially compromising their system. Users of Adobe Substance 3D Painter versions 8.3.0 and earlier are affected.
💻 Affected Systems
- Adobe Substance 3D Painter
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the victim's machine, data theft, ransomware deployment, and lateral movement within the network.
Likely Case
Local privilege escalation leading to malware installation, credential theft, and persistence mechanisms being established on the compromised system.
If Mitigated
Limited impact with user account isolation preventing system-wide compromise, though local data remains at risk.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file) and knowledge of buffer overflow techniques. No public exploits have been reported as of the advisory date.
🛠️ 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. Follow prompts to install version 8.3.1 or later. 4. Restart the application after installation completes.
🔧 Temporary Workarounds
Restrict File Opening
allOnly open Substance 3D Painter files from trusted sources and avoid opening unknown or suspicious files.
Application Sandboxing
allRun Substance 3D Painter in a sandboxed environment or virtual machine to limit potential damage from exploitation.
🧯 If You Can't Patch
- Implement application whitelisting to prevent execution of unauthorized code
- Use endpoint detection and response (EDR) tools to monitor for suspicious process creation and memory manipulation
🔍 How to Verify
Check if Vulnerable:
Check the application version in Help > About Substance 3D Painter. If version is 8.3.0 or earlier, the system is vulnerable.Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify the application version shows 8.3.1 or later in Help > About Substance 3D Painter.📡 Detection & Monitoring
Log Indicators:
- Unexpected process crashes of Substance3DPainter.exe
- Unusual file access patterns from Substance 3D Painter process
- Creation of unexpected child processes from Substance3DPainter.exe
Network Indicators:
- Outbound connections from Substance 3D Painter to unknown external IPs
- DNS queries for suspicious domains from the application process
SIEM Query:
Process Creation where Parent Process Name contains 'Substance3DPainter' AND (Process Name not in ('explorer.exe', 'notepad.exe', 'calc.exe'))