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The vulnerability resides in the file upload endpoint of the Samsung MagicINFO 9 Server. This endpoint is designed to accept content files, such as images and videos, for distribution to connected digital signage displays. The server processes a user-controlled path within the upload request to determine where to save the incoming file. Due to insufficient validation, the application fails to properly sanitize or neutralize path traversal sequences like `../` (dot-dot-slash). This allows an attacker to escape the intended upload directory. An unauthenticated attacker can craft a malicious HTTP POST request. This request contains a `filename` parameter or a similar path field embedded with traversal sequences. By manipulating the path, the attacker can point the file write operation to any location on the server’s filesystem. The server software operates with system-level authority. Consequently, the attacker can write arbitrary files to critical system directories. A common exploitation method is to upload a web shell, such as a malicious `.jsp` file. By writing this web shell to a web-accessible directory, like the Tomcat webapps root, the attacker gains remote code execution (RCE). Accessing the uploaded shell via a web browser with a command parameter then enables arbitrary OS command execution with system privileges. This chain of events leads to a full compromise of the server’s confidentiality, integrity, and availability.
dailycve form:
Platform: Samsung MagicINFO
Version: before 21.1052
Vulnerability : Path Traversal
Severity: Critical (9.8)
date: May 13, 2025
Prediction: Already released (21.1052)
Analytics under heading What Undercode Say:
HTTP/1.1 200 OK Content-Type: text/html <html><body> <h1>Vulnerability Analysis: CVE-2025-4632</h1> EPSS Score: 49.2 (98th percentile) indicating high exploitation likelihood. Actively exploited in the wild by Mirai botnet variants. Public proof-of-concept (PoC) exploit code is available. Added to CISA Known Exploited Vulnerabilities (KEV) catalog on May 22, 2025. </body></html>
Exploit:
curl -X POST http://target-ip:port/uploadEndpoint \ -F "[email protected]" \ -F "path=../../../../webapps/ROOT/shell.jsp"
Protection from this CVE
Upgrade to Samsung MagicINFO 9 Server version 21.1052 or later. Implement strict input validation to sanitize path traversal sequences. Apply network segmentation to restrict access to the server. Use Web Application Firewalls (WAF) to block malicious path patterns.
Impact
An unauthenticated attacker can achieve full Remote Code Execution (RCE), leading to complete system compromise. This includes data theft, malware deployment (e.g., Mirai botnet), and potential use of the server as a pivot point for lateral movement within the network.
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Sources:
Reported By: www.cve.org
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