CVE-2025-54438
📋 TL;DR
This path traversal vulnerability in Samsung MagicINFO 9 Server allows attackers to upload malicious web shell files to the web server directory. Attackers can achieve remote code execution by exploiting improper path validation. All MagicINFO 9 Server installations below version 21.1080.0 are affected.
💻 Affected Systems
- Samsung MagicINFO 9 Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with persistent backdoor access, data exfiltration, lateral movement to other systems, and potential ransomware deployment.
Likely Case
Unauthorized web shell upload leading to remote code execution, data theft, and system manipulation.
If Mitigated
Attack blocked at network perimeter or detected before successful exploitation.
🎯 Exploit Status
Path traversal vulnerabilities are commonly exploited with simple HTTP requests. The high CVSS score suggests trivial exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 21.1080.0 or later
Vendor Advisory: https://security.samsungtv.com/securityUpdates
Restart Required: Yes
Instructions:
1. Download MagicINFO 9 Server version 21.1080.0 or later from Samsung's official portal. 2. Backup current configuration and data. 3. Run the installer to upgrade. 4. Restart the server. 5. Verify the new version is running.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to MagicINFO server to only trusted IP addresses/networks
Use firewall rules to allow only specific source IPs to TCP ports 80/443
Web Application Firewall
allDeploy WAF with path traversal protection rules
Configure WAF to block requests containing '../', '..\', or similar traversal patterns
🧯 If You Can't Patch
- Isolate the MagicINFO server in a dedicated network segment with strict inbound/outbound firewall rules
- Implement file integrity monitoring on web directories and alert on unauthorized file uploads
🔍 How to Verify
Check if Vulnerable:
Check MagicINFO Server version in the admin interface or via 'About' section. If version is below 21.1080.0, system is vulnerable.Check Version:
Check via MagicINFO admin web interface at http(s)://[server-ip]/admin -> System InformationVerify Fix Applied:
Confirm version is 21.1080.0 or higher in the admin interface. Test file upload functionality with traversal attempts.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing '../' or '..\' patterns in file upload parameters
- Unexpected file creation in web directories (especially .jsp, .php, .aspx files)
- Unusual process execution from web server directories
Network Indicators:
- HTTP POST requests to file upload endpoints with encoded traversal sequences
- Outbound connections from web server to unknown external IPs
SIEM Query:
source="web_server_logs" AND (uri="*../*" OR uri="*..\\*" OR params="*../*" OR params="*..\\*")