Overview
This report discloses a significant security vulnerability – CVE-2025-58322, which impacts NAVER MYBOX Explorer for Windows versions prior to 3.0.8.133. The flaw allows a local attacker to escalate privileges to NT AUTHORITY\SYSTEM, leading to potential system compromise or data leakage. This matters significantly as it provides a malicious user unauthorized access to sensitive system resources and data.
Vulnerability Summary
CVE ID: CVE-2025-58322
Severity: High (CVSS: 7.8)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Unauthorized privilege escalation, potential system compromise, and data leakage
Affected Products
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Product | Affected Versions
NAVER MYBOX Explorer for Windows | Before 3.0.8.133
How the Exploit Works
The vulnerability is exploited when a local attacker invokes arbitrary DLLs due to improper privilege checks. By doing this, the attacker can escalate their privileges to NT AUTHORITY\SYSTEM, gaining full control over the system.
Conceptual Example Code
Given the nature of the exploit, a conceptual example would involve dropping a malicious DLL into a directory from which the NAVER MYBOX Explorer for Windows loads DLLs. In a command line interface, this could look like:
# Copy the malicious DLL to the target directory
copy /Y C:\Path\To\Malicious.dll C:\Path\To\Target\Directory
# Invoke the vulnerable application
start C:\Path\To\NAVER_MYBOX_Explorer.exeMitigation and Recommendations
Affected users are advised to apply the vendor patch immediately. In cases where patching is not immediately feasible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. Regular system and application updates, along with routine security checks, can help in preventing such vulnerabilities.