CVE-2022-23187
📋 TL;DR
Adobe Illustrator versions 26.0.3 and earlier contain a buffer overflow vulnerability that allows arbitrary code execution when a user opens a maliciously crafted file. This affects all users running vulnerable versions of Illustrator who open untrusted files. The attacker gains the same privileges as the current user.
💻 Affected Systems
- Adobe Illustrator
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the victim's computer, data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Local privilege escalation leading to data exfiltration, malware installation, or persistence mechanisms being established on the compromised system.
If Mitigated
Limited impact with proper application sandboxing and user privilege restrictions, potentially resulting in application crash rather than code execution.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No public exploit code available at time of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 26.0.4 and later
Vendor Advisory: https://helpx.adobe.com/security/products/illustrator/apsb22-15.html
Restart Required: Yes
Instructions:
1. Open Adobe Creative Cloud application. 2. Navigate to 'Apps' tab. 3. Find Adobe Illustrator and click 'Update'. 4. Alternatively, download latest version from Adobe website. 5. Restart computer after installation.
🔧 Temporary Workarounds
Disable Illustrator file associations
allPrevent Illustrator from automatically opening AI/EPS files by changing default file associations
Windows: Control Panel > Default Programs > Set Associations
macOS: Right-click file > Get Info > Open With > Change All
Application sandboxing
allRun Illustrator in restricted environment using application sandboxing tools
Windows: Use Windows Sandbox or third-party sandbox tools
macOS: Use built-in sandboxing features or third-party solutions
🧯 If You Can't Patch
- Implement strict user privilege management - run Illustrator with least privilege accounts
- Deploy application control policies to block execution of untrusted Illustrator files
🔍 How to Verify
Check if Vulnerable:
Open Adobe Illustrator, go to Help > About Illustrator. Check if version is 26.0.3 or earlier.Check Version:
Windows: "C:\Program Files\Adobe\Adobe Illustrator [version]\Support Files\Contents\Windows\Illustrator.exe" /version (if available) or check in About dialog. macOS: /Applications/Adobe Illustrator [version]/Adobe Illustrator.app/Contents/MacOS/Illustrator --version (if available)Verify Fix Applied:
After updating, verify version is 26.0.4 or later in Help > About Illustrator.📡 Detection & Monitoring
Log Indicators:
- Application crashes of Illustrator with memory access violations
- Unexpected child processes spawned from Illustrator
- Unusual file access patterns from Illustrator process
Network Indicators:
- Outbound connections from Illustrator process to suspicious IPs
- DNS queries for known malicious domains from Illustrator
SIEM Query:
process_name:"Illustrator.exe" AND (event_id:1000 OR event_id:1001) OR process_parent_name:"Illustrator.exe" AND process_name NOT IN (expected_child_processes)