Description

CVE-2024-7399 describes an improper limitation of a pathname to a restricted directory vulnerability (CWE-22) in Samsung MagicINFO 9 Server versions prior to 21.1050. This flaw allows attackers to write arbitrary files with system authority. The SVRS score of 68 indicates a moderate risk level, suggesting a need for prompt, but not necessarily immediate, remediation. However, the tag "In The Wild" indicates the vulnerability is actively exploited by hackers, increasing its risk.

Key Insights

• Arbitrary File Write: The core issue is that attackers can write arbitrary files, potentially leading to system compromise by overwriting critical system files or injecting malicious code.
• System Authority: Exploitation occurs with system authority, granting attackers significant control over the affected server. This elevates the severity as they can perform a wider range of malicious activities.
• Samsung MagicINFO 9 Impact: Specifically affecting Samsung MagicINFO 9 Server, organizations using this software are at risk. Given its purpose (digital signage), impacted systems could include public-facing displays, which, if compromised, can lead to reputation damage in addition to direct data loss.
• Actively Exploited: The "In The Wild" tag confirms that this vulnerability is being actively exploited by hackers, necessitating heightened urgency in patching and monitoring.

Mitigation Strategies

• Immediate Patching/Updating: Upgrade Samsung MagicINFO 9 Server to version 21.1050 or a later version where the vulnerability is resolved. This is the most effective mitigation.
• Input Validation: Implement or enhance input validation mechanisms on the server to prevent malicious path manipulation attempts. Specifically, validate and sanitize all file paths provided by users or external sources.
• Access Control Review: Review and restrict access permissions for the directories where files are written. Implement the principle of least privilege, ensuring only necessary users and processes have write access.
• Web Application Firewall (WAF) Rules: Deploy or update WAF rules to detect and block attempts to exploit this vulnerability by filtering out suspicious requests containing malicious file paths.

Additional Information

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