CVE-2023-22239
📋 TL;DR
CVE-2023-22239 is an improper input validation vulnerability in Adobe After Effects that allows arbitrary code execution when a user opens a malicious file. This affects users of After Effects versions 23.1 and earlier, and 22.6.3 and earlier. Successful exploitation requires user interaction through opening a crafted file.
💻 Affected Systems
- Adobe After Effects
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the victim's computer in the context of the current user, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Malware installation or data exfiltration through social engineering attacks where users are tricked into opening malicious project files.
If Mitigated
No impact if users avoid opening untrusted files and proper application whitelisting is in place.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No authentication bypass needed as user already has file access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: After Effects 23.2 and 22.6.4
Vendor Advisory: https://helpx.adobe.com/security/products/after_effects/apsb23-02.html
Restart Required: Yes
Instructions:
1. Open Adobe Creative Cloud application. 2. Navigate to 'Apps' tab. 3. Find After Effects and click 'Update'. 4. Wait for download and installation. 5. Restart computer if prompted.
🔧 Temporary Workarounds
Restrict file opening
allImplement application control policies to prevent opening of untrusted After Effects project files.
User awareness training
allTrain users to only open After Effects files from trusted sources and verify file integrity.
🧯 If You Can't Patch
- Implement application whitelisting to block execution of malicious payloads
- Use endpoint detection and response (EDR) to monitor for suspicious After Effects process behavior
🔍 How to Verify
Check if Vulnerable:
Check After Effects version: Open After Effects > Help > About After Effects. If version is 23.1 or earlier, or 22.6.3 or earlier, you are vulnerable.Check Version:
On Windows: wmic product where name="Adobe After Effects" get version
On macOS: /Applications/Adobe\ After\ Effects\ */Adobe\ After\ Effects.app/Contents/Info.plist | grep -A1 CFBundleShortVersionStringVerify Fix Applied:
Verify After Effects version is 23.2 or higher, or 22.6.4 or higher after updating through Adobe Creative Cloud.📡 Detection & Monitoring
Log Indicators:
- Unusual After Effects process spawning child processes
- After Effects accessing unexpected files or network resources
- Multiple failed file parsing attempts in After Effects logs
Network Indicators:
- After Effects process making unexpected outbound connections
- DNS requests for suspicious domains from After Effects process
SIEM Query:
process_name:"AfterFX.exe" AND (child_process:* OR network_connection:*)