CVE-2019-8006
📋 TL;DR
This vulnerability in Adobe Acrobat and Reader allows attackers to execute arbitrary code by exploiting an untrusted pointer dereference. Users running affected versions could have their systems compromised if they open malicious PDF files. The vulnerability affects multiple versions across different release tracks.
💻 Affected Systems
- Adobe Acrobat DC
- Adobe Acrobat Reader DC
- Adobe Acrobat 2017
- Adobe Acrobat Reader 2017
- Adobe Acrobat 2015
- Adobe Acrobat Reader 2015
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full 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 a user opens a specially crafted PDF file, leading to malware installation or data exfiltration.
If Mitigated
Limited impact with proper application sandboxing, least privilege principles, and network segmentation preventing lateral movement.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious PDF file. No public proof-of-concept has been released, but the high CVSS score suggests reliable exploitation is possible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Acrobat DC/Reader DC: 2019.012.20036 or later; Acrobat 2017/Reader 2017: 2017.011.30144 or later; Acrobat 2015/Reader 2015: 2015.006.30499 or later
Vendor Advisory: https://helpx.adobe.com/security/products/acrobat/apsb19-41.html
Restart Required: Yes
Instructions:
1. Open Adobe Acrobat or Reader. 2. Go to Help > Check for Updates. 3. Follow the prompts to download and install the latest version. 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
allEnable Protected View for files from potentially unsafe locations to limit damage from malicious PDFs.
Edit > Preferences > Security (Enhanced) > Enable Protected View at startup
🧯 If You Can't Patch
- Restrict PDF file handling to trusted sources only and implement application whitelisting
- Deploy endpoint detection and response (EDR) solutions to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check Adobe Acrobat/Reader version via Help > About Adobe Acrobat/Reader and compare against affected versions listed in the advisory.Check Version:
On Windows: wmic product where name like "Adobe Acrobat%" get version; On macOS: /usr/bin/mdls -name kMDItemVersion /Applications/Adobe\ Acrobat*/*.appVerify Fix Applied:
Verify version is updated to patched versions: Acrobat DC/Reader DC 2019.012.20036+, Acrobat 2017/Reader 2017 2017.011.30144+, or Acrobat 2015/Reader 2015 2015.006.30499+.📡 Detection & Monitoring
Log Indicators:
- Unexpected process crashes of AcroRd32.exe or Acrobat.exe
- Suspicious child processes spawned from Adobe Reader/Acrobat
- Unusual file writes or registry modifications from Adobe processes
Network Indicators:
- Outbound connections from Adobe processes to unexpected destinations
- DNS requests for known malicious domains from systems running vulnerable Adobe versions
SIEM Query:
source="*" (process_name="AcroRd32.exe" OR process_name="Acrobat.exe") AND (event_id="1000" OR event_id="1001") | stats count by host