CVE-2021-28595
📋 TL;DR
CVE-2021-28595 is an uncontrolled search path vulnerability in Adobe Dimension that allows arbitrary code execution when a user opens a malicious file. Attackers can exploit this to run code with the victim's privileges, affecting all users of Adobe Dimension 3.4 and earlier versions.
💻 Affected Systems
- Adobe Dimension
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through arbitrary code execution leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Malware installation or credential theft when users open malicious project files from untrusted sources.
If Mitigated
No impact if users only open trusted files and have proper endpoint protection.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file) but is straightforward once the malicious file is crafted.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Adobe Dimension 3.4.1 or later
Vendor Advisory: https://helpx.adobe.com/security/products/dimension/apsb21-40.html
Restart Required: Yes
Instructions:
1. Open Adobe Dimension. 2. Go to Help > Check for Updates. 3. Follow prompts to install version 3.4.1 or later. 4. Restart the application.
🔧 Temporary Workarounds
Restrict file opening
allOnly open Adobe Dimension files from trusted sources and verify file integrity before opening.
Application control
allUse application whitelisting to prevent execution of unauthorized binaries that might be dropped via this vulnerability.
🧯 If You Can't Patch
- Discontinue use of Adobe Dimension until patched
- Implement strict file validation policies and user training about opening untrusted files
🔍 How to Verify
Check if Vulnerable:
Check Adobe Dimension version: Open Adobe Dimension, go to Help > About Adobe Dimension. If version is 3.4 or earlier, you are vulnerable.Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify version is 3.4.1 or later in Help > About Adobe Dimension.📡 Detection & Monitoring
Log Indicators:
- Unexpected process execution from Adobe Dimension directory
- Suspicious file operations following Adobe Dimension launch
Network Indicators:
- Unusual outbound connections from Adobe Dimension process
SIEM Query:
Process creation where parent process contains 'Dimension' and child process is suspicious (e.g., cmd.exe, powershell.exe, wscript.exe)