CVE-2021-28610
📋 TL;DR
CVE-2021-28610 is a heap-based buffer overflow vulnerability in Adobe After Effects that allows arbitrary code execution when a user opens a malicious file. Attackers can exploit this to run code with the victim's privileges. Users of Adobe After Effects versions 18.2 and earlier are affected.
💻 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, data theft, ransomware deployment, and 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 containing the exploit to the application context.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file) but the vulnerability itself is unauthenticated. No public exploit code was available at disclosure time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 18.2.1 and later
Vendor Advisory: https://helpx.adobe.com/security/products/after_effects/apsb21-49.html
Restart Required: Yes
Instructions:
1. Open Adobe Creative Cloud application. 2. Navigate to 'Apps' section. 3. Find Adobe After Effects. 4. Click 'Update' button. 5. Wait for download and installation. 6. Restart computer if prompted.
🔧 Temporary Workarounds
Restrict file opening
allConfigure system policies to prevent opening of untrusted After Effects project files
Application sandboxing
allRun After Effects in restricted environments or virtual machines
🧯 If You Can't Patch
- Implement strict file opening policies and user training about suspicious files
- Deploy application control solutions to restrict execution of malicious payloads
🔍 How to Verify
Check if Vulnerable:
Check Adobe After Effects version in Help > About After Effects menuCheck 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 version is 18.2.1 or higher and check for successful update in Creative Cloud📡 Detection & Monitoring
Log Indicators:
- Application crashes with memory access violations
- Suspicious file opening events in application logs
- Unexpected child processes spawned from After Effects
Network Indicators:
- Outbound connections from After Effects to suspicious domains
- Unexpected network traffic patterns after file opening
SIEM Query:
source="*after_effects*" AND (event_type="crash" OR process_name="malicious_executable")