CVE-2023-48625
📋 TL;DR
This CVE describes an out-of-bounds write vulnerability in Adobe Substance 3D Sampler that could allow arbitrary code execution when a user opens a malicious file. Attackers could gain the same privileges as the current user. All users of Adobe Substance 3D Sampler versions 4.2.1 and earlier are affected.
💻 Affected Systems
- Adobe Substance 3D Sampler
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the victim's computer, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Local privilege escalation leading to data exfiltration, credential theft, or installation of additional malware on the affected system.
If Mitigated
Limited impact with user account isolation preventing system-wide compromise, though user data remains at risk.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No public exploit code has been identified as of the advisory date.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.2.2 or later
Vendor Advisory: https://helpx.adobe.com/security/products/substance3d-sampler/apsb23-74.html
Restart Required: Yes
Instructions:
1. Open Adobe Substance 3D Sampler. 2. Go to Help > Check for Updates. 3. Follow prompts to install version 4.2.2 or later. 4. Restart the application after installation.
🔧 Temporary Workarounds
Restrict file opening
allConfigure application to only open trusted files from verified sources
Application sandboxing
allRun Adobe Substance 3D Sampler in a sandboxed environment to limit potential damage
🧯 If You Can't Patch
- Disable Adobe Substance 3D Sampler until patching is possible
- Implement strict file validation policies and user training to avoid opening untrusted files
🔍 How to Verify
Check if Vulnerable:
Check Adobe Substance 3D Sampler version in application settings or About dialogCheck Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify version is 4.2.2 or later in application settings📡 Detection & Monitoring
Log Indicators:
- Application crash logs with memory access violations
- Unexpected file opening events in application logs
Network Indicators:
- Unusual outbound connections after file opening
- Command and control beaconing
SIEM Query:
EventID=1000 OR EventID=1001 with Adobe Substance 3D Sampler process name