CVE-2025-4632
📋 TL;DR
This vulnerability allows attackers to write arbitrary files with system-level privileges on Samsung MagicINFO 9 Server by exploiting improper pathname restrictions. Attackers can potentially achieve remote code execution or system compromise. Only systems running MagicINFO 9 Server versions before 21.1052 are affected.
💻 Affected Systems
- Samsung MagicINFO 9 Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining SYSTEM privileges, installing persistent backdoors, stealing credentials, and pivoting to other network resources.
Likely Case
Remote code execution leading to malware deployment, data exfiltration, or ransomware installation on affected MagicINFO servers.
If Mitigated
Limited impact with proper network segmentation and access controls preventing exploitation attempts from reaching vulnerable systems.
🎯 Exploit Status
CISA has added this to their Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 21.1052 or later
Vendor Advisory: https://security.samsungtv.com/securityUpdates#SVP-MAY-2025
Restart Required: Yes
Instructions:
1. Download MagicINFO 9 Server version 21.1052 or later from Samsung's official site. 2. Backup current configuration and data. 3. Install the update following Samsung's installation guide. 4. Restart the server to complete the update.
🔧 Temporary Workarounds
Network Segmentation
allIsolate MagicINFO servers from untrusted networks and restrict access to management interfaces.
Access Control Lists
allImplement strict firewall rules to limit inbound connections to MagicINFO servers.
🧯 If You Can't Patch
- Immediately isolate affected systems from production networks and internet access
- Implement application whitelisting to prevent execution of unauthorized files
🔍 How to Verify
Check if Vulnerable:
Check MagicINFO Server version in the application's About section or system information panel.Check Version:
Check via MagicINFO Server GUI: Help > About or system information panelVerify Fix Applied:
Confirm version is 21.1052 or higher in the application interface and verify no unauthorized file writes occur.📡 Detection & Monitoring
Log Indicators:
- Unusual file write operations in system directories
- Unauthorized process execution with SYSTEM privileges
- Failed authentication attempts followed by file operations
Network Indicators:
- Unexpected outbound connections from MagicINFO servers
- Traffic to known malicious IPs from MagicINFO systems
SIEM Query:
source="magicinfo" AND (event_type="file_write" AND target_path="system*" OR event_type="process_exec" AND user="SYSTEM")