CVE-2024-45139
📋 TL;DR
CVE-2024-45139 is a heap-based buffer overflow vulnerability in Adobe Substance3D Stager that allows arbitrary code execution when a user opens a malicious file. This affects users of Substance3D Stager versions 3.0.3 and earlier, enabling attackers to run code with the victim's privileges.
💻 Affected Systems
- Adobe Substance3D Stager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the user's system, data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation leading to data exfiltration, installation of persistent malware, or credential harvesting from the compromised user account.
If Mitigated
Limited impact with proper application sandboxing, user privilege restrictions, and file validation controls preventing successful exploitation.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No public exploit code available as per advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.4 or later
Vendor Advisory: https://helpx.adobe.com/security/products/substance3d_stager/apsb24-81.html
Restart Required: Yes
Instructions:
1. Open Adobe Substance3D Stager. 2. Go to Help > Check for Updates. 3. Follow prompts to install version 3.0.4 or later. 4. Restart the application.
🔧 Temporary Workarounds
Restrict file opening
allConfigure application to only open trusted files from verified sources
Application sandboxing
allRun Substance3D Stager in restricted environment with limited permissions
🧯 If You Can't Patch
- Implement application allowlisting to restrict execution of vulnerable versions
- Deploy endpoint detection and response (EDR) to monitor for suspicious file opening behavior
🔍 How to Verify
Check if Vulnerable:
Check Substance3D Stager version in application settings or About dialog. If version is 3.0.3 or earlier, system is vulnerable.Check Version:
Open Substance3D Stager and navigate to Help > About Substance3D StagerVerify Fix Applied:
Verify version is 3.0.4 or later in application settings. Test opening known safe files to ensure functionality.📡 Detection & Monitoring
Log Indicators:
- Application crash logs from Substance3D Stager
- Unexpected process creation from Substance3D Stager
- File access attempts to suspicious file types
Network Indicators:
- Outbound connections from Substance3D Stager to unknown IPs
- DNS requests for suspicious domains after file opening
SIEM Query:
process_name:"Substance3D Stager" AND (event_type:crash OR parent_process:explorer.exe AND cmdline:*.*)