CVE-2025-54443 Overview
CVE-2025-54443 is a critical Path Traversal vulnerability affecting Samsung MagicINFO 9 Server that enables attackers to upload web shells to vulnerable systems. This improper limitation of pathname handling allows remote, unauthenticated attackers to bypass directory restrictions and place malicious files on the web server, potentially leading to complete system compromise.
Samsung MagicINFO is a digital signage content management solution widely deployed in enterprise environments, retail locations, and public display networks. The severity of this vulnerability stems from the combination of network-accessible attack surface, no authentication requirements, and the ability to achieve arbitrary code execution through web shell deployment.
Critical Impact
Remote unauthenticated attackers can upload web shells to the server, enabling arbitrary command execution, data exfiltration, and full system compromise of Samsung MagicINFO 9 Server installations.
Affected Products
- Samsung MagicINFO 9 Server versions prior to 21.1080.0
Discovery Timeline
- July 23, 2025 - CVE-2025-54443 published to NVD
- July 30, 2025 - Last updated in NVD database
Technical Details for CVE-2025-54443
Vulnerability Analysis
This vulnerability is classified as CWE-22 (Improper Limitation of a Pathname to a Restricted Directory), commonly known as Path Traversal or Directory Traversal. The flaw exists in the Samsung MagicINFO 9 Server's file upload handling mechanism, where insufficient validation of user-supplied path components allows attackers to escape the intended upload directory.
The exploitation requires no privileges or user interaction, making it particularly dangerous in internet-facing deployments. When successfully exploited, an attacker can upload arbitrary files—including web shells—to directories accessible by the web server, enabling subsequent remote code execution.
Root Cause
The root cause of CVE-2025-54443 lies in inadequate input sanitization of file path parameters during the upload process. The application fails to properly canonicalize and validate file paths, allowing directory traversal sequences such as ../ to navigate outside the intended upload directory structure. This permits attackers to write files to arbitrary locations on the web server's filesystem where the application has write permissions.
Attack Vector
The attack vector is network-based, requiring only HTTP/HTTPS access to the vulnerable MagicINFO 9 Server instance. An attacker crafts a malicious file upload request containing path traversal sequences in the filename or path parameter. By manipulating these values, the attacker can direct the server to write the uploaded content—typically a web shell—to a web-accessible directory.
Once the web shell is successfully placed, the attacker can access it via a direct HTTP request, gaining the ability to execute arbitrary commands on the underlying server with the privileges of the web application. This can lead to data theft, lateral movement within the network, ransomware deployment, or persistent backdoor access.
Detection Methods for CVE-2025-54443
Indicators of Compromise
- Unusual file uploads containing path traversal patterns (../, ..%2f, ..%5c) in HTTP request logs
- Unexpected executable files (.jsp, .php, .aspx, .sh) appearing in web-accessible directories
- Web server access logs showing requests to unfamiliar or newly created script files
- Anomalous outbound network connections originating from the MagicINFO server process
Detection Strategies
- Implement web application firewall (WAF) rules to detect and block path traversal sequences in upload requests
- Deploy file integrity monitoring (FIM) on MagicINFO installation directories to alert on unauthorized file creation
- Configure intrusion detection systems (IDS) with signatures for common web shell patterns and command execution behaviors
- Review HTTP request logs for multipart/form-data uploads containing encoded traversal characters
Monitoring Recommendations
- Monitor file system changes in web-accessible directories on MagicINFO servers for unexpected file creation
- Establish baseline network behavior for MagicINFO servers and alert on anomalous outbound connections
- Configure centralized logging for all MagicINFO server instances to enable rapid threat detection and response
How to Mitigate CVE-2025-54443
Immediate Actions Required
- Upgrade Samsung MagicINFO 9 Server to version 21.1080.0 or later immediately
- Restrict network access to MagicINFO administrative interfaces using firewall rules or network segmentation
- Audit existing MagicINFO server installations for signs of compromise, including unexpected files in web directories
- If an upgrade is not immediately possible, consider taking vulnerable instances offline until patching can be completed
Patch Information
Samsung has released a security update addressing this vulnerability in MagicINFO 9 Server version 21.1080.0. Organizations should obtain the latest version through official Samsung channels. For detailed patch information and additional security updates, refer to the Samsung TV Security Updates portal.
Workarounds
- Implement network-level access controls to restrict upload functionality to trusted IP addresses only
- Deploy a web application firewall (WAF) configured to block requests containing path traversal sequences
- Disable or restrict file upload functionality if not operationally required until patching can be completed
- Run the MagicINFO service under a restricted user account with minimal filesystem permissions
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
