CVE-2022-30652
📋 TL;DR
This CVE describes an out-of-bounds write vulnerability in Adobe InCopy that could allow arbitrary code execution when a user opens a malicious file. It affects users of Adobe InCopy versions 17.2 and earlier, and 16.4.1 and earlier. Exploitation requires user interaction, such as opening a crafted document.
💻 Affected Systems
- Adobe InCopy
📦 What is this software?
Incopy by Adobe
Incopy by Adobe
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise via arbitrary code execution in the context of the current user, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Local privilege escalation or malware installation if a user is tricked into opening a malicious file, resulting in limited impact on individual workstations.
If Mitigated
No impact if users avoid opening untrusted files or if the software is patched, with minimal disruption to operations.
🎯 Exploit Status
Exploitation requires user interaction (opening a malicious file), making it less trivial but feasible with social engineering.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to Adobe InCopy version 17.3 or later, or 16.4.2 or later, as specified in the vendor advisory.
Vendor Advisory: https://helpx.adobe.com/security/products/incopy/apsb22-29.html
Restart Required: Yes
Instructions:
1. Open Adobe InCopy. 2. Go to Help > Check for Updates. 3. Follow prompts to install the latest version. 4. Restart the application after installation.
🔧 Temporary Workarounds
Restrict file opening
allLimit user ability to open untrusted files by implementing application whitelisting or blocking suspicious file types.
🧯 If You Can't Patch
- Educate users to avoid opening files from untrusted sources and to verify file integrity.
- Implement endpoint detection and response (EDR) tools to monitor for suspicious file execution and out-of-bounds write attempts.
🔍 How to Verify
Check if Vulnerable:
Check the Adobe InCopy version via Help > About InCopy; if version is 17.2 or earlier, or 16.4.1 or earlier, it is vulnerable.Check Version:
On Windows: wmic product where name='Adobe InCopy' get version; On macOS: /Applications/Adobe\ InCopy/Adobe\ InCopy.app/Contents/Info.plist | grep -A1 CFBundleShortVersionStringVerify Fix Applied:
After updating, confirm the version is 17.3 or later, or 16.4.2 or later, in Help > About InCopy.📡 Detection & Monitoring
Log Indicators:
- Log entries showing crashes or abnormal terminations of Adobe InCopy, especially after file opens.
Network Indicators:
- Unusual outbound connections from Adobe InCopy process to unknown IPs post-file open.
SIEM Query:
Example: process_name='Adobe InCopy' AND event_type='crash' OR file_path='*.incd' AND action='open'