CVE-2024-9827
📋 TL;DR
This vulnerability allows attackers to exploit an out-of-bounds read in Autodesk AutoCAD when processing malicious CATPART files. Attackers can cause crashes, read sensitive memory, or potentially execute arbitrary code. Users of affected AutoCAD versions are at risk.
💻 Affected Systems
- Autodesk AutoCAD
📦 What is this software?
Autocad by Autodesk
Autocad Mep by Autodesk
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise and data exfiltration.
Likely Case
Application crashes and potential information disclosure from memory reads.
If Mitigated
Limited to denial of service if memory protections prevent code execution.
🎯 Exploit Status
Exploitation requires user interaction to open malicious files. No public exploits confirmed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions specified in Autodesk advisory ADSK-SA-2024-0019
Vendor Advisory: https://www.autodesk.com/trust/security-advisories/adsk-sa-2024-0019
Restart Required: Yes
Instructions:
1. Check current AutoCAD version. 2. Download and install the security update from Autodesk. 3. Restart AutoCAD and verify the update.
🔧 Temporary Workarounds
Restrict CATPART file processing
windowsBlock or restrict processing of CATPART files through application settings or group policies.
User awareness training
allTrain users to avoid opening untrusted CATPART files from unknown sources.
🧯 If You Can't Patch
- Implement application whitelisting to restrict AutoCAD execution to trusted systems only.
- Use network segmentation to isolate AutoCAD systems from sensitive networks.
🔍 How to Verify
Check if Vulnerable:
Check AutoCAD version against affected versions in Autodesk advisory ADSK-SA-2024-0019.Check Version:
In AutoCAD: Type 'ABOUT' command or check Help > About AutoCADVerify Fix Applied:
Verify AutoCAD version matches or exceeds patched version from Autodesk advisory.📡 Detection & Monitoring
Log Indicators:
- Application crashes related to CC5Dll.dll
- Unexpected file processing errors
Network Indicators:
- Unusual file transfers to AutoCAD systems
SIEM Query:
EventID=1000 AND ProcessName='acad.exe' AND FaultModuleName='CC5Dll.dll'