CVE-2025-1946
📋 TL;DR
This critical vulnerability in hzmanyun Education and Training System 2.1 allows remote attackers to execute arbitrary commands via command injection in the exportPDF function. Attackers can exploit this by manipulating the 'id' parameter to inject system commands, potentially gaining full control of affected servers. All systems running the vulnerable version are at risk.
💻 Affected Systems
- hzmanyun Education and Training System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary commands, steal sensitive data, install malware, pivot to other systems, or disrupt educational operations.
Likely Case
Attackers gain shell access to the server, potentially accessing student/teacher data, modifying system files, or using the server as a foothold for further attacks.
If Mitigated
With proper network segmentation and least privilege, impact limited to the application server with no lateral movement to critical systems.
🎯 Exploit Status
Exploit details are publicly available on GitHub, making this easy to weaponize. No authentication required to reach the vulnerable endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Check vendor website for updates. Consider upgrading to a newer version if available.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation for the 'id' parameter in exportPDF function to reject any non-numeric or suspicious input.
Web Application Firewall Rules
allDeploy WAF rules to block command injection patterns targeting the /user/exportPDF endpoint.
🧯 If You Can't Patch
- Block external access to /user/exportPDF endpoint using network ACLs or web server configuration
- Implement network segmentation to isolate the vulnerable system from critical infrastructure
🔍 How to Verify
Check if Vulnerable:
Check if system is running hzmanyun Education and Training System version 2.1. Test the /user/exportPDF endpoint with command injection payloads in a controlled environment.Check Version:
Check application version in admin panel or configuration files; no standard command available.Verify Fix Applied:
Verify that command injection attempts against the /user/exportPDF endpoint are properly blocked or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual commands in web server logs for /user/exportPDF
- System command execution from web process
- Multiple failed injection attempts
Network Indicators:
- Unusual outbound connections from web server
- Traffic patterns indicating command injection attempts
SIEM Query:
source="web_server" AND uri="/user/exportPDF" AND (payload="|" OR payload="$" OR payload="&" OR payload=";")