CVE-2025-66837
📋 TL;DR
A file upload vulnerability in ARIS 10.0.23.0.3587512 allows attackers to upload malicious PDF files that can execute arbitrary code on the server. This affects organizations using the vulnerable ARIS version for business process management.
💻 Affected Systems
- Software AG ARIS
📦 What is this software?
Aris by Softwareag
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise leading to data theft, ransomware deployment, or lateral movement across the network
Likely Case
Malware installation, data exfiltration, or creation of persistent backdoors
If Mitigated
Limited impact if file uploads are restricted and proper validation is in place
🎯 Exploit Status
Exploit requires file upload access but doesn't need authentication if upload functionality is publicly accessible
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://www.softwareag.com/
Restart Required: No
Instructions:
1. Check Software AG website for security updates
2. Apply any available patches
3. Verify the fix doesn't break functionality
🔧 Temporary Workarounds
Restrict PDF file uploads
allBlock PDF file uploads through web application firewall or server configuration
Implement file validation
allAdd server-side validation to check file types and content before processing
🧯 If You Can't Patch
- Isolate ARIS server from internet and restrict internal access
- Implement strict file upload policies and monitor for suspicious uploads
🔍 How to Verify
Check if Vulnerable:
Check ARIS version in administration console or configuration filesCheck Version:
Check ARIS administration panel or consult installation documentationVerify Fix Applied:
Test file upload functionality with malicious PDF files to ensure they're rejected📡 Detection & Monitoring
Log Indicators:
- Unusual PDF file uploads
- Large file uploads to ARIS endpoints
- Suspicious process execution after file upload
Network Indicators:
- HTTP POST requests to file upload endpoints with PDF content
- Outbound connections from ARIS server after file upload
SIEM Query:
source="ARIS" AND (event="file_upload" AND file_extension="pdf")