CVE-2022-28819
📋 TL;DR
Adobe Character Animator has an out-of-bounds write vulnerability that allows arbitrary code execution when a user opens a malicious SVG file. This affects users of Character Animator versions 4.4.2 and earlier, and 22.3 and earlier. Successful exploitation requires user interaction but gives attackers control over the victim's system.
💻 Affected Systems
- Adobe Character Animator
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining the same privileges as the logged-in user, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Malware installation or data exfiltration through spear-phishing campaigns targeting creative professionals with malicious SVG files.
If Mitigated
No impact if users avoid opening untrusted SVG files or have patched software.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious SVG file). No public exploit code available as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Character Animator 4.4.3 and 22.4
Vendor Advisory: https://helpx.adobe.com/security/products/character_animator/apsb22-21.html
Restart Required: Yes
Instructions:
1. Open Adobe Character Animator. 2. Go to Help > Check for Updates. 3. Install available updates. 4. Restart the application.
🔧 Temporary Workarounds
Block SVG file execution
allConfigure system to prevent Character Animator from opening SVG files or block SVG file extensions at perimeter.
User awareness training
allTrain users to avoid opening SVG files from untrusted sources.
🧯 If You Can't Patch
- Restrict user permissions to limit potential damage from code execution
- Implement application whitelisting to prevent unauthorized executables from running
🔍 How to Verify
Check if Vulnerable:
Check Character Animator version in Help > About Character Animator. If version is 4.4.2 or earlier, or 22.3 or earlier, system is vulnerable.Check Version:
On Windows: Check via Help > About Character Animator. On macOS: Character Animator > About Character Animator.Verify Fix Applied:
Verify version is 4.4.3 or later for version 4.x, or 22.4 or later for version 22.x.📡 Detection & Monitoring
Log Indicators:
- Process creation from Character Animator with unusual parameters
- SVG file access followed by unexpected network connections
Network Indicators:
- Outbound connections from Character Animator process to unknown IPs
- DNS requests for suspicious domains after SVG file processing
SIEM Query:
Process creation where parent_process contains 'Character Animator' AND (process contains 'cmd.exe' OR process contains 'powershell.exe' OR process contains 'bash')