CVE-2020-9573
📋 TL;DR
A memory corruption vulnerability in Adobe Illustrator versions 24.0.2 and earlier allows attackers to execute arbitrary code by tricking users into opening malicious files. This affects all users running vulnerable versions of Adobe Illustrator. Successful exploitation requires user interaction.
💻 Affected Systems
- Adobe Illustrator
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the affected system, data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation leading to malware installation, data exfiltration, or persistence mechanisms being established on the compromised system.
If Mitigated
Limited impact due to application sandboxing or restricted user privileges, potentially resulting in application crash rather than code execution.
🎯 Exploit Status
Exploitation requires user interaction to open malicious file. No public exploit code available as of knowledge cutoff.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 24.1 and later
Vendor Advisory: https://helpx.adobe.com/security/products/illustrator/apsb20-20.html
Restart Required: Yes
Instructions:
1. Open Adobe Illustrator. 2. Go to Help > Updates. 3. Install available updates to version 24.1 or later. 4. Restart Illustrator after installation.
🔧 Temporary Workarounds
Disable automatic file opening
allConfigure Illustrator to not automatically open files from untrusted sources
Use application sandboxing
allRun Illustrator in restricted mode or sandboxed environment
🧯 If You Can't Patch
- Restrict user privileges to prevent system-wide compromise if exploited
- Implement application whitelisting to block execution of malicious payloads
🔍 How to Verify
Check if Vulnerable:
Check Illustrator version via Help > About Illustrator. If version is 24.0.2 or earlier, system is vulnerable.Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify Illustrator version is 24.1 or later via Help > About Illustrator.📡 Detection & Monitoring
Log Indicators:
- Unexpected Illustrator crashes
- Suspicious file opening events in application logs
- Unusual process creation from Illustrator
Network Indicators:
- Outbound connections from Illustrator to suspicious domains
- Unexpected network activity following file opening
SIEM Query:
Process Creation where Parent Process contains 'illustrator' AND (Command Line contains '.ai' OR Command Line contains '.eps')