CVE-2022-44514
📋 TL;DR
This CVE describes a use-after-free vulnerability in Adobe Acrobat Reader DC that could allow arbitrary code execution when a user opens a malicious PDF file. The vulnerability affects multiple versions across different release tracks and requires user interaction to exploit.
💻 Affected Systems
- Adobe Acrobat Reader DC
📦 What is this software?
Acrobat by Adobe
Acrobat by Adobe
Acrobat by Adobe
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining the same privileges as the current user, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Malicious PDF files delivered via phishing emails or compromised websites lead to malware installation on individual workstations.
If Mitigated
With proper controls like application whitelisting, least privilege, and email filtering, impact is limited to isolated incidents requiring manual remediation.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No public exploit code was available at disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 22.001.20085 (and later), 20.005.30314 (and later), 17.012.30206 (and later)
Vendor Advisory: https://helpx.adobe.com/security/products/acrobat/apsb22-16.html
Restart Required: Yes
Instructions:
1. Open Adobe Acrobat Reader DC. 2. Go to Help > Check for Updates. 3. Follow prompts to install available updates. 4. Restart the application.
🔧 Temporary Workarounds
Disable JavaScript in Adobe Reader
allPrevents JavaScript execution which may be used in exploitation chains
Edit > Preferences > JavaScript > Uncheck 'Enable Acrobat JavaScript'
Use Protected View
allOpen untrusted PDFs in Protected View mode to limit potential damage
File > Open > Select 'Protected View' option when opening files
🧯 If You Can't Patch
- Implement application whitelisting to block unauthorized PDF readers
- Use email filtering to block PDF attachments from untrusted sources
🔍 How to Verify
Check if Vulnerable:
Check Adobe Reader version against affected versions listCheck Version:
Help > About Adobe Acrobat Reader DCVerify Fix Applied:
Verify version is updated to patched versions: 22.001.20085+, 20.005.30314+, or 17.012.30206+📡 Detection & Monitoring
Log Indicators:
- Adobe Reader crash logs with memory access violations
- Windows Event Logs showing application crashes
Network Indicators:
- Unusual outbound connections from Adobe Reader process
- PDF downloads from suspicious sources
SIEM Query:
process_name:"AcroRd32.exe" AND (event_id:1000 OR event_id:1001) AND exception_code:0xc0000005