CVE-2023-29275

7.8 HIGH

📋 TL;DR

Adobe Substance 3D Painter has an out-of-bounds read vulnerability that could allow an attacker to execute arbitrary code on a victim's system. Users who open malicious files with affected versions (8.3.0 and earlier) are at risk. This requires user interaction but could lead to full system compromise.

💻 Affected Systems

Products:
  • Adobe Substance 3D Painter
Versions: 8.3.0 and earlier
Operating Systems: Windows, macOS, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of affected versions are vulnerable when opening files.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with current user privileges leading to complete system compromise, data theft, or ransomware deployment.

🟠

Likely Case

Application crash or limited information disclosure due to memory read errors, though code execution is possible with crafted exploits.

🟢

If Mitigated

No impact if users avoid opening untrusted files or have patched versions.

🌐 Internet-Facing: LOW - Exploitation requires user interaction with malicious files, not network exposure.
🏢 Internal Only: MEDIUM - Internal users could be targeted via phishing or shared malicious files.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires user to open a crafted malicious file. No public exploits known as of 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. Install version 8.3.1 or later. 4. Restart the application.

🔧 Temporary Workarounds

Restrict file opening

all

Only open files from trusted sources and avoid unknown/unexpected files.

🧯 If You Can't Patch

  • Restrict user permissions to limit potential damage from code execution
  • Use application whitelisting to prevent execution of unauthorized code

🔍 How to Verify

Check if Vulnerable:

Check Help > About in Substance 3D Painter - if version is 8.3.0 or earlier, you are vulnerable.

Check Version:

Not applicable - check via application GUI

Verify Fix Applied:

Verify version is 8.3.1 or later in Help > About.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes with memory access violations
  • Unexpected file opening events

Network Indicators:

  • File downloads from untrusted sources

SIEM Query:

EventID for application crash OR process creation from Substance3DPainter.exe

🔗 References

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