Overview
The cybersecurity landscape is an ever-evolving beast, with new vulnerabilities surfacing regularly. A recent discovery of note is a severe vulnerability with a CVSS Severity Score of 9.8 in the Samsung MagicINFO 9 Server. This vulnerability, identified as CVE-2025-4632, is of particular concern due to the potential for system compromise or significant data leakage. It affects all versions of the server software prior to 21.1052, making a substantial number of systems at risk if not patched promptly.
This vulnerability is alarming because it allows attackers to write arbitrary files as system authority due to an improper limitation of a pathname to a restricted directory. This means that malicious actors could potentially gain complete control over an affected system, leading to the potential for significant harm or disruption to the organization’s operations.
Vulnerability Summary
CVE ID: CVE-2025-4632
Severity: Critical (9.8 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Samsung MagicINFO 9 Server | All versions before 21.1052
How the Exploit Works
The vulnerability arises due to an incorrect restriction of a pathname to a restricted directory, leading to potential directory traversal. This means that an attacker could potentially manipulate file and directory paths to access restricted directories. When exploited, this vulnerability enables the attacker to write arbitrary files as system authority, effectively gaining complete control over the system.
Conceptual Example Code
To better understand how this vulnerability could be exploited, consider the following conceptual code example. This is a theoretical HTTP POST request that a malicious actor could use to exploit the vulnerability:
POST /restricted/directory HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "arbitrary_file": "/etc/passwd", "content": "malicious_content" }In this example, the attacker is attempting to overwrite the `/etc/passwd` file, which controls user password information on Unix-like operating systems. By doing so, the attacker can potentially gain unauthorized access to the system.
Mitigation
Samsung has released a patch for the vulnerability in version 21.1052 of the Samsung MagicINFO 9 Server. All users of this software are urged to apply the patch as soon as possible. In the interim, it may be possible to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block attempts to exploit this vulnerability. However, these measures should be considered temporary solutions and not a replacement for applying the vendor patch.