CVE-2023-25869
📋 TL;DR
Adobe Substance 3D Stager has an out-of-bounds read vulnerability that could allow arbitrary code execution when a user opens a malicious file. Attackers could exploit this to run code with the victim's privileges. Users of Substance 3D Stager versions 2.0.0 and earlier are affected.
💻 Affected Systems
- Adobe Substance 3D Stager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise via arbitrary code execution with current user privileges, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Limited impact due to required user interaction; most probable outcome is application crash or limited data disclosure from memory.
If Mitigated
No impact if users avoid opening untrusted files or if application is patched.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file) and bypassing memory protections; no public exploits known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.1 or later
Vendor Advisory: https://helpx.adobe.com/security/products/substance3d_stager/apsb23-22.html
Restart Required: Yes
Instructions:
1. Open Adobe Substance 3D Stager. 2. Go to Help > Check for Updates. 3. Install available updates. 4. Restart the application.
🔧 Temporary Workarounds
Restrict file opening
allConfigure application to only open trusted files from verified sources
Application sandboxing
allRun Substance 3D Stager in restricted environment/sandbox
🧯 If You Can't Patch
- Implement application whitelisting to prevent execution of unapproved software
- Use endpoint protection with memory protection features enabled
🔍 How to Verify
Check if Vulnerable:
Check Help > About in Substance 3D Stager; if version is 2.0.0 or earlier, system is vulnerable.Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify version is 2.0.1 or later in Help > About after update.📡 Detection & Monitoring
Log Indicators:
- Application crash logs with memory access violations
- Unexpected file opening events from Substance 3D Stager
Network Indicators:
- Downloads of unusual file types by Substance 3D Stager process
SIEM Query:
process_name:"Substance 3D Stager" AND (event_type:crash OR file_extension:.sbs OR file_extension:.sbsar)