CVE-2020-3710
📋 TL;DR
This memory corruption vulnerability in Adobe Illustrator CC allows attackers to execute arbitrary code on affected systems. Users running Illustrator CC versions 24.0 and earlier are vulnerable. Successful exploitation requires the victim to open a malicious file.
💻 Affected Systems
- Adobe Illustrator CC
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the affected machine, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation leading to installation of malware, keyloggers, or backdoors on the user's system when opening a malicious Illustrator file.
If Mitigated
Limited impact with proper application sandboxing, file validation, and user awareness preventing malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No public exploit code was available at disclosure time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 24.0.1 and later
Vendor Advisory: https://helpx.adobe.com/security/products/illustrator/apsb20-03.html
Restart Required: Yes
Instructions:
1. Open Adobe Creative Cloud application. 2. Navigate to 'Apps' tab. 3. Find Adobe Illustrator CC. 4. Click 'Update' button. 5. Restart computer after installation completes.
🔧 Temporary Workarounds
Disable Illustrator file opening
allPrevent Illustrator from opening files by modifying file associations
Windows: assoc .ai=unknown
macOS: defaults write com.apple.LaunchServices LSHandlers -array-add '{LSHandlerContentType=com.adobe.ai;LSHandlerRoleAll=;}'
Application sandboxing
allRun Illustrator in restricted environment to limit potential damage
Windows: Use Windows Sandbox or third-party sandboxing tools
macOS: Use built-in sandboxing features or third-party solutions
🧯 If You Can't Patch
- Implement strict file validation policies to block untrusted Illustrator files
- Use application control/whitelisting to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check Illustrator version: Open Illustrator → Help → About Illustrator. If version is 24.0 or earlier, system is vulnerable.Check Version:
Windows: "C:\Program Files\Adobe\Adobe Illustrator [version]\Support Files\Contents\Windows\Illustrator.exe" /versionVerify Fix Applied:
Verify Illustrator version is 24.0.1 or later. Test opening known safe Illustrator files to ensure functionality.📡 Detection & Monitoring
Log Indicators:
- Illustrator crash logs with memory access violations
- Unexpected child processes spawned from Illustrator.exe
Network Indicators:
- Outbound connections from Illustrator process to suspicious IPs
- DNS requests for known malicious domains from Illustrator
SIEM Query:
process_name:"Illustrator.exe" AND (event_id:1000 OR event_id:1001) AND exception_code:0xc0000005