Samsung MagicINFO 9 Server Arbitrary File Write and Remote Code Execution (RCE) Vulnerability Advisory (CVE-2025-4632)
Executive & SecOps Summary
SECOPS ASSESSMENTSamsung MagicINFO 9 Server versions prior to 21.1052
Unauthenticated remote attackers can exploit path traversal to write arbitrary files with system authority, leading to Remote Code Execution (RCE)
Immediately upgrade MagicINFO 9 Server to version 21.1052 or later and restrict external access
Affected Products & Version Scope
Remediation & Live Workaround Commands
PATCH & WORKAROUND1. Official Patch & Version Upgrade Commands
According to Samsung's official security advisory, administrators must immediately upgrade MagicINFO 9 Server to version 21.1052 or higher.
2. Temporary Workaround & Hardening Configuration
Until the patch can be applied, restrict access to the MagicINFO management console and API ports (default: 7001, 7002) from the public internet. Below is an Nginx configuration snippet to block path traversal patterns:
# Nginx Configuration - Block Path Traversal Attempts
server {
listen 80;
server_name magicinfo.local;
# Block directory traversal sequences in URI
if ($request_uri ~* '(\.\./|\.\.\\)') {
return 400 'Invalid Request';
}
location / {
proxy_pass http://127.0.0.1:7001;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
}
}3. Log Audit & IoC Verification Commands
Use the following PowerShell script to inspect active MagicINFO ports and search for potential path traversal patterns within the server logs:
# PowerShell - Check MagicINFO Service Port and Search for Traversal Patterns in Logs
Write-Host 'Checking active MagicINFO listening ports...' -ForegroundColor Cyan
Get-NetTCPConnection | Where-Object { $_.LocalPort -in @(7001, 7002) } | Format-Table
Write-Host 'Searching for potential Path Traversal attempts in IIS/Tomcat logs...' -ForegroundColor Yellow
$LogPath = 'C:\Program Files\MagicINFO Server omcat\logs\*'
if (Test-Path $LogPath) {
Select-String -Path $LogPath -Pattern '\.\./|\.\.\\' | Select-Object -First 20
} else {
Write-Host 'Default log path not found. Please check custom log directory.' -ForegroundColor Red
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Technical Root Cause & Exploitation Mechanics
1. Vulnerability Overview & Root Cause
This vulnerability (CVE-2025-4632) is a critical Path Traversal (CWE-22) vulnerability in Samsung MagicINFO 9 Server, an integrated digital signage management solution. The root cause lies in the application's failure to properly sanitize and restrict user-supplied file paths and filenames. This allows attackers to input directory traversal sequences (such as '../') to escape the intended directory boundaries.
2. Exploitation Mechanics & Attack Scenario
An unauthenticated remote attacker can craft a malicious HTTP request targeting file upload or file creation endpoints. By injecting path traversal sequences (../../) into the filename parameter, the attacker forces the server to write files outside the restricted directory. By writing a malicious web shell into an executable web directory or overwriting critical system configuration files, the attacker can achieve arbitrary code execution (RCE) under the context of system authority.
3. Infrastructure & Business Impact
With a CVSS 3.1 score of 9.8 (Critical), this vulnerability poses an extreme risk. It has been added to the CISA Known Exploited Vulnerabilities (KEV) catalog, indicating active exploitation in the wild. Successful exploitation allows complete system compromise, enabling attackers to deface connected digital displays, exfiltrate sensitive data, or pivot laterally into the internal corporate network.
Official Vendor Advisories & References
Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21.1052 allows attackers to write arbitrary file as system authority.
Frequently Asked SecOps Questions (CVE-2025-4632)
FAQQ1. How critical is CVE-2025-4632 and is it actively exploited in the wild?
CVE-2025-4632 is rated CVSS 9.8 (CRITICAL) with a 30-day EPSS exploitation probability of 24.1%. It is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, requiring immediate emergency remediation.
Q2. Which vendors and products are affected by CVE-2025-4632?
Primary impacted vendors include samsung across magicinfo 9 server. Scope summary: All Samsung MagicINFO 9 Server versions prior to 21.1052
Q3. What temporary mitigations or workarounds exist for CVE-2025-4632 before patching?
[Mitigation] Immediately upgrade MagicINFO 9 Server to version 21.1052 or later and restrict external access Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.
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