CVE-2025-4535
📋 TL;DR
This vulnerability in Gosuncn Technology Group Audio-Visual Integrated Management Platform 4.0 allows remote attackers to access sensitive configuration information via the /config/config.properties file. The information disclosure could expose credentials, system settings, or other sensitive data. Organizations using this specific platform version are affected.
💻 Affected Systems
- Gosuncn Technology Group Audio-Visual Integrated Management Platform
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain administrative credentials or sensitive system configuration data, leading to full system compromise, lateral movement, or data exfiltration.
Likely Case
Attackers access configuration files containing sensitive information like database credentials, API keys, or system paths, enabling further attacks or reconnaissance.
If Mitigated
Limited exposure of non-critical configuration data with no direct path to system compromise.
🎯 Exploit Status
Exploit has been publicly disclosed and requires only web access to the vulnerable endpoint. No authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available - vendor did not respond to disclosure
Restart Required: No
Instructions:
No official patch available. Monitor vendor communications for updates. Consider workarounds or alternative solutions.
🔧 Temporary Workarounds
Restrict access to config.properties
allBlock web access to the /config/config.properties file using web server configuration or firewall rules.
# Apache: Add to .htaccess or virtual host config
<Files "config.properties">
Require all denied
</Files>
# Nginx: Add to server block
location = /config/config.properties {
deny all;
return 403;
}
Move or rename configuration file
linuxRelocate the config.properties file outside the web-accessible directory and update application references.
mv /path/to/webroot/config/config.properties /secure/location/config.properties
# Update application configuration to reference new location
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the vulnerable system from untrusted networks.
- Deploy a web application firewall (WAF) with rules to block access to config.properties paths.
🔍 How to Verify
Check if Vulnerable:
Attempt to access http://[target]/config/config.properties via web browser or curl. If the file contents are returned, the system is vulnerable.Check Version:
Check platform version through admin interface or application metadata. No specific CLI command provided by vendor.Verify Fix Applied:
After applying workarounds, attempt the same access. You should receive a 403/404 error or be denied access.📡 Detection & Monitoring
Log Indicators:
- HTTP 200 responses to /config/config.properties requests
- Unusual access patterns to configuration directories
Network Indicators:
- GET requests to /config/config.properties from unexpected sources
SIEM Query:
web_access_logs | where url contains "/config/config.properties" and response_code = 200