CVE-2024-7399 is a high-severity vulnerability affecting Samsung Electronics MagicINFO 9 Server versions prior to 21.1050. The vulnerability is classified as CWE-22 (Improper Limitation of a Pathname to a Restricted Directory, commonly known as Path Traversal) and also relates to CWE-434 (Unrestricted Upload of File with Dangerous Type). This flaw allows an attacker with at least low-level privileges (PR:L) to exploit the server remotely (AV:N) without requiring user interaction (UI:N). By exploiting this vulnerability, an attacker can bypass directory restrictions and write arbitrary files on the system with system-level authority. This means the attacker can potentially place malicious files anywhere on the server’s filesystem, including critical system directories, leading to full compromise of confidentiality, integrity, and availability of the affected system. The CVSS v3.1 base score is 8.8, indicating a high level of severity. The vulnerability is particularly dangerous because it allows remote code execution or persistent backdoor installation without user interaction, and the attack surface is network accessible. No known exploits are reported in the wild yet, but the vulnerability’s characteristics make it a prime target for exploitation once public proof-of-concept code or exploit tools become available. Samsung MagicINFO 9 Server is a digital signage management solution widely used in enterprises for managing content on display devices. The vulnerability could be leveraged to disrupt business operations, steal sensitive data, or pivot within a network to compromise other systems.

For European organizations, the impact of CVE-2024-7399 could be substantial, especially for those relying on Samsung MagicINFO 9 Server for digital signage and content management in critical environments such as retail, transportation hubs, corporate offices, and public information systems. Exploitation could lead to unauthorized modification or deletion of files, insertion of malicious code, and potential takeover of the server. This could disrupt digital signage services, cause misinformation or defacement of public displays, and potentially serve as a foothold for lateral movement within corporate networks. Confidential business data and customer information stored or processed by these servers could be exposed or altered. Given the high privileges gained by an attacker, the integrity and availability of the entire IT environment could be compromised, leading to operational downtime and reputational damage. Additionally, organizations in regulated sectors such as finance, healthcare, and government may face compliance violations and legal consequences if the vulnerability is exploited.

1. Immediate patching: Organizations should prioritize updating Samsung MagicINFO 9 Server to version 21.1050 or later once available from Samsung, as the vendor has not yet published a patch but is expected to do so promptly. 2. Access control: Restrict network access to the MagicINFO server to trusted management networks only, using firewalls and network segmentation to limit exposure. 3. Privilege management: Ensure that accounts with access to the MagicINFO server have the minimum necessary privileges, and monitor for unusual privilege escalations. 4. File system monitoring: Implement integrity monitoring on critical directories to detect unauthorized file writes or changes. 5. Web application firewall (WAF): Deploy WAF rules to detect and block path traversal attempts targeting the MagicINFO server. 6. Incident response readiness: Prepare to detect and respond to exploitation attempts by monitoring logs for suspicious file operations and network activity related to the MagicINFO server. 7. Vendor communication: Maintain close contact with Samsung for timely updates and patches. 8. Temporary workaround: If patching is delayed, consider disabling or isolating the MagicINFO server from external networks until a fix is applied.