CVE-2025-0225
📋 TL;DR
This path traversal vulnerability in Tsinghua Unigroup Electronic Archives System allows attackers to read arbitrary files by manipulating the 'name' parameter in the /setting/ClassFy/exampleDownload.html endpoint. Organizations using version 3.2.210802(62532) of this electronic archives system are affected. The vulnerability can be exploited remotely without authentication.
💻 Affected Systems
- Tsinghua Unigroup Electronic Archives System
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive system files, configuration files, or user data, potentially leading to credential theft, system compromise, or data exfiltration.
Likely Case
Attackers will read accessible files within the web server's context, potentially exposing configuration files, logs, or other sensitive information stored in predictable locations.
If Mitigated
With proper file permissions and web server restrictions, impact is limited to reading only files the web server process can access, reducing exposure of critical system files.
🎯 Exploit Status
Public proof-of-concept exploit code is available on GitHub, making exploitation trivial for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Check vendor website for updates or apply workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allImplement input validation to reject path traversal sequences like '../' in the name parameter
Modify application code to sanitize the 'name' parameter before processing
Web Server Restriction
allConfigure web server to block access to the vulnerable endpoint or restrict file access
Add location block in nginx: location ~* /setting/ClassFy/exampleDownload.html { deny all; }
Add in Apache: <Location "/setting/ClassFy/exampleDownload.html"> Require all denied </Location>
🧯 If You Can't Patch
- Implement WAF rules to block requests containing path traversal sequences to the vulnerable endpoint
- Restrict network access to the system using firewall rules, allowing only trusted IP addresses
🔍 How to Verify
Check if Vulnerable:
Test by sending a request to /setting/ClassFy/exampleDownload.html?name=../../../etc/passwd and checking if file contents are returnedCheck Version:
Check system documentation or web interface for version informationVerify Fix Applied:
After applying workarounds, test the same request and verify it's blocked or returns an error📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /setting/ClassFy/exampleDownload.html with '../' sequences in parameters
- Unusual file access patterns from web server process
Network Indicators:
- HTTP GET requests with path traversal sequences in query parameters
- Traffic to the vulnerable endpoint from unexpected sources
SIEM Query:
source="web_logs" AND uri="/setting/ClassFy/exampleDownload.html" AND (query="*../*" OR query="*..\\*" OR query="*%2e%2e%2f*")