CVE-2025-4333
📋 TL;DR
This critical vulnerability allows remote attackers to upload arbitrary files without restrictions in the feng_ha_ha/megagao ssm-erp and production_ssm software. Attackers can potentially upload malicious files like webshells to gain unauthorized access or execute code. Organizations using these products up to version 0.0.1 are affected.
💻 Affected Systems
- feng_ha_ha/megagao ssm-erp
- production_ssm
⚠️ 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
Remote code execution leading to complete system compromise, data theft, and lateral movement within the network.
Likely Case
Upload of webshells or malicious scripts resulting in unauthorized access, data exfiltration, or service disruption.
If Mitigated
Limited impact with proper file upload validation and access controls in place.
🎯 Exploit Status
Exploit has been publicly disclosed and requires minimal technical skill to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider removing the software or implementing strict workarounds.
🔧 Temporary Workarounds
Implement File Upload Validation
allAdd server-side validation to restrict file types, extensions, and content.
Modify src/main/java/com/megagao/production/ssm/service/impl/FileServiceImpl.java to validate uploads
Restrict Upload Directory Permissions
linuxSet upload directory to read-only for web server and prevent execution.
chmod 644 /path/to/upload/directory/*
chown root:root /path/to/upload/directory
🧯 If You Can't Patch
- Disable file upload functionality entirely if not required
- Implement WAF rules to block malicious file upload patterns
🔍 How to Verify
Check if Vulnerable:
Check if using affected products (ssm-erp or production_ssm) version 0.0.1 or earlierCheck Version:
Check application configuration files or package manifests for version informationVerify Fix Applied:
Test file upload functionality with restricted file types to ensure validation is working📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to uploadFile endpoint
- Uploads of executable file types (.jsp, .php, .exe)
Network Indicators:
- HTTP POST requests to upload endpoints with suspicious file content
SIEM Query:
source="web_logs" AND uri="/uploadFile" AND (file_extension="jsp" OR file_extension="php" OR file_extension="exe")