CVE-2025-54307
📋 TL;DR
This vulnerability allows authenticated low-privilege users to upload ZIP files containing path traversal payloads, enabling arbitrary file writes to the server. Attackers can overwrite executable files like pdflatex to achieve remote code execution. All systems running Thermo Fisher Torrent Suite Django application 5.18.1 are affected.
💻 Affected Systems
- Thermo Fisher Torrent Suite Django application
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise through remote code execution, data theft, lateral movement, and persistent backdoor installation.
Likely Case
Unauthorized file writes leading to service disruption, data manipulation, and potential RCE if attackers target specific executables.
If Mitigated
Limited to authenticated users only, with potential file writes but no execution if proper file permissions and monitoring are in place.
🎯 Exploit Status
Exploitation requires authentication but is straightforward once authenticated. The path traversal and file overwrite mechanisms are clearly documented in the CVE description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not provided in references
Restart Required: No
Instructions:
1. Check Thermo Fisher security advisories for patch availability. 2. Apply the official patch when released. 3. Verify the fix by testing the vulnerable endpoints.
🔧 Temporary Workarounds
Disable vulnerable endpoints
allBlock access to /configure/plugins/plugin/upload/zip/ and /configure/newupdates/offline/bundle/upload/ endpoints via web server configuration or firewall rules.
# For Apache: RewriteRule ^/configure/plugins/plugin/upload/zip/ - [F]
# For Nginx: location ~ ^/configure/plugins/plugin/upload/zip/ { deny all; }
# For Windows Firewall: New-NetFirewallRule -DisplayName "Block Torrent Suite Upload" -Direction Inbound -Protocol TCP -LocalPort 80,443 -RemoteAddress Any -Action Block
Implement file upload validation
linuxAdd server-side validation to sanitize filenames, restrict allowed extensions, and prevent path traversal in upload handlers.
# Python example: import os; safe_name = os.path.basename(filename); if '..' in safe_name or safe_name.startswith('/'): raise ValueError('Invalid filename')
🧯 If You Can't Patch
- Restrict network access to only trusted IP addresses using firewall rules.
- Implement strict file permission controls to prevent overwriting of executable files.
🔍 How to Verify
Check if Vulnerable:
Test if authenticated users can upload ZIP files with path traversal payloads (e.g., '../../evil.exe') to the vulnerable endpoints and observe file writes outside intended directories.Check Version:
Check the application version via admin interface or configuration files; for Torrent Suite, refer to documentation or system info panels.Verify Fix Applied:
After applying fixes, attempt the same path traversal uploads and verify they are rejected or sanitized, with no unauthorized file writes occurring.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /configure/plugins/plugin/upload/zip/ or /configure/newupdates/offline/bundle/upload/ with filenames containing '..' or path traversal sequences.
- Unexpected subprocess executions of pdflatex or other executables from unusual paths.
Network Indicators:
- HTTP POST requests to the vulnerable endpoints with ZIP file uploads, especially from low-privilege user accounts.
SIEM Query:
source="web_logs" AND (url="/configure/plugins/plugin/upload/zip/" OR url="/configure/newupdates/offline/bundle/upload/") AND (filename="*..*" OR user_agent="*plupload*")🔗 References
- https://assets.thermofisher.com/TFS-Assets/LSG/manuals/MAN0026163-Torrent-Suite-5.18-UG.pdf
- https://documents.thermofisher.com/TFS-Assets/CORP/Product-Guides/Ion_OneTouch_2_and_Torrent_Suite_Software.pdf
- https://www.thermofisher.com/us/en/home/life-science/sequencing/next-generation-sequencing/ion-torrent-next-generation-sequencing-workflow/ion-torrent-next-generation-sequencing-data-analysis-workflow/ion-torrent-suite-software.html
