CVE-2024-8596

7.8 HIGH

📋 TL;DR

This vulnerability allows attackers to execute arbitrary code on AutoCAD systems by tricking users into opening malicious MODEL files. It affects AutoCAD users who open untrusted files, potentially giving attackers full control of the affected system.

💻 Affected Systems

Products:
  • Autodesk AutoCAD
Versions: Multiple versions prior to the patched release
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in libodxdll.dll when parsing MODEL files. All AutoCAD installations using this library are affected.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete system compromise, data theft, and lateral movement within the network.

🟠

Likely Case

Application crash or denial of service when users open malicious files from untrusted sources.

🟢

If Mitigated

Limited impact if users only open trusted files and systems are properly segmented.

🌐 Internet-Facing: MEDIUM - Requires user interaction to open malicious files, but could be delivered via email or web downloads.
🏢 Internal Only: HIGH - Internal users opening malicious files from compromised internal sources could lead to network-wide compromise.

🎯 Exploit Status

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

Requires user interaction to open malicious file. No public exploit code available at this time.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Autodesk Security Advisory ADSK-SA-2024-0019 for specific patched versions

Vendor Advisory: https://www.autodesk.com/trust/security-advisories/adsk-sa-2024-0019

Restart Required: Yes

Instructions:

1. Visit Autodesk Trust Center 2. Download and install the latest AutoCAD update 3. Restart the application 4. Verify the patch is applied

🔧 Temporary Workarounds

Restrict MODEL file execution

windows

Block or restrict execution of MODEL files from untrusted sources

User awareness training

all

Train users to only open MODEL files from trusted sources

🧯 If You Can't Patch

  • Implement application whitelisting to prevent unauthorized AutoCAD execution
  • Segment AutoCAD systems from critical network resources

🔍 How to Verify

Check if Vulnerable:

Check AutoCAD version against affected versions listed in Autodesk advisory

Check Version:

In AutoCAD: HELP → About → Check version number

Verify Fix Applied:

Verify AutoCAD version matches or exceeds patched version from advisory

📡 Detection & Monitoring

Log Indicators:

  • Application crashes in AutoCAD
  • Unusual file access patterns for MODEL files

Network Indicators:

  • Unexpected outbound connections from AutoCAD process

SIEM Query:

Process:AutoCAD.exe AND (EventID:1000 OR FileExtension:.model)

🔗 References

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