CVE-2020-9586

7.8 HIGH

📋 TL;DR

This buffer overflow vulnerability in Adobe Character Animator allows attackers to execute arbitrary code on affected systems. Users running Character Animator 3.2 or earlier are vulnerable to potential system compromise.

💻 Affected Systems

Products:
  • Adobe Character Animator
Versions: 3.2 and earlier
Operating Systems: Windows, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of affected versions are vulnerable by default. No special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with attacker gaining complete control over the affected system, potentially leading to data theft, ransomware deployment, or lateral movement within the network.

🟠

Likely Case

Local privilege escalation or remote code execution when processing malicious Character Animator files, leading to malware installation or data exfiltration.

🟢

If Mitigated

Limited impact with proper network segmentation and application sandboxing, potentially resulting in application crash but no system compromise.

🌐 Internet-Facing: LOW
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires user interaction such as opening a malicious Character Animator file. No known public exploits available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.3 or later

Vendor Advisory: https://helpx.adobe.com/security/products/character_animator/apsb20-25.html

Restart Required: Yes

Instructions:

1. Open Adobe Creative Cloud application
2. Navigate to 'Apps' section
3. Find Adobe Character Animator
4. Click 'Update' if available
5. Alternatively, download latest version from Adobe website
6. Install update and restart system

🔧 Temporary Workarounds

Disable Character Animator file associations

windows

Prevent automatic opening of Character Animator files by removing file associations

Application sandboxing

all

Run Character Animator in restricted environment to limit potential damage

🧯 If You Can't Patch

  • Restrict user permissions to prevent execution of arbitrary code
  • Implement network segmentation to isolate affected systems

🔍 How to Verify

Check if Vulnerable:

Check Character Animator version in Help > About Character Animator menu. If version is 3.2 or earlier, system is vulnerable.

Check Version:

On Windows: Check registry at HKEY_LOCAL_MACHINE\SOFTWARE\Adobe\Character Animator\Version
On macOS: Check /Applications/Adobe Character Animator/Contents/Info.plist for CFBundleShortVersionString

Verify Fix Applied:

Verify version is 3.3 or later in Help > About Character Animator menu.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes with memory access violations
  • Unexpected process creation from Character Animator

Network Indicators:

  • Outbound connections from Character Animator to unknown IPs
  • Unusual file downloads triggered by Character Animator

SIEM Query:

process_name:"Character Animator" AND (event_type:crash OR process_creation:true)

🔗 References

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