CVE-2022-44512
📋 TL;DR
CVE-2022-44512 is an out-of-bounds write vulnerability in Adobe Acrobat Reader DC that could allow arbitrary code execution when a user opens a malicious PDF file. This affects users running vulnerable versions of Acrobat Reader DC across multiple release tracks. Successful exploitation requires user interaction but could lead to complete system compromise.
💻 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
Full system compromise with attacker gaining the same privileges as the current user, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Malicious PDF files delivered via phishing emails or malicious websites lead to malware installation on individual workstations, resulting in data exfiltration or credential theft.
If Mitigated
With proper security controls, malicious files are blocked at email gateways or endpoints, and users are trained not to open suspicious attachments, preventing exploitation.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No public exploit code was available at disclosure time, but memory corruption vulnerabilities in PDF readers are frequently targeted.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 22.001.20085 (Continuous Track), 20.005.30314 (Classic 2020 Track), 17.012.30206 (2017 Track)
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 when prompted.
🔧 Temporary Workarounds
Disable JavaScript in Adobe Reader
allDisabling JavaScript reduces attack surface as many PDF exploits rely on JavaScript execution.
Edit > Preferences > JavaScript > Uncheck 'Enable Acrobat JavaScript'
Use Protected View
allConfigure Adobe Reader to open files from untrusted sources in Protected View mode.
Edit > Preferences > Security (Enhanced) > Enable Protected View for files from potentially unsafe locations
🧯 If You Can't Patch
- Deploy application control policies to block execution of vulnerable Adobe Reader versions
- Implement email filtering to block PDF attachments from untrusted sources
🔍 How to Verify
Check if Vulnerable:
Open Adobe Reader, go to Help > About Adobe Acrobat Reader DC and compare version against affected ranges.Check Version:
On Windows: wmic product where name="Adobe Acrobat Reader DC" get versionVerify Fix Applied:
Check version number after update matches patched versions: 22.001.20085 or higher, 20.005.30314 or higher, or 17.012.30206 or higher.📡 Detection & Monitoring
Log Indicators:
- Adobe Reader crash logs with memory access violations
- Windows Event Logs showing unexpected process creation from AcroRd32.exe
Network Indicators:
- Outbound connections from Adobe Reader process to suspicious IPs
- DNS requests for known malware domains following PDF file opens
SIEM Query:
process_name:AcroRd32.exe AND (event_id:1000 OR event_id:1001) | stats count by host