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CVE-2018-17936 is an unrestricted file upload vulnerability in NUUO Central Management Server (CMS) versions 3.3 and prior. The vulnerability exists in the COMMITCONFIG function, which allows authenticated users to upload arbitrary files to the server. Due to insufficient validation and path traversal, attackers can upload files that overwrite or modify configuration files, leading to remote code execution (RCE) on the server. This flaw is present in all versions up to 3.3 and is fixed in version 3.3.0.18.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (nuuo_cms_fu.rb) that exploits an authenticated arbitrary file upload vulnerability (CVE-2018-17936) in Nuuo Central Management Server (CMS) versions up to 2.4.0 on Windows. The exploit abuses the COMMITCONFIG verb and directory traversal in the 'FileName' parameter to overwrite arbitrary files, specifically targeting LicenseTool.dll. The module first attempts to back up the original DLL, uploads a malicious DLL payload to gain code execution as SYSTEM, and then attempts to restore the original DLL to avoid corrupting the CMS installation. The exploit requires valid credentials or a session token and provides a SYSTEM shell to the attacker. The main attack vector is network-based, targeting the CMS service. The only fingerprintable endpoints are the LicenseTool.dll file path and the CMS server itself. The code is written in Ruby and is designed to be used within the Metasploit framework.
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