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NAS4Free 9.1.0.1.804 and earlier contains a feature in exec.php ("Advanced | Execute Command") that allows remote authenticated users to execute arbitrary PHP code. This functionality is intentionally exposed by the developer as part of the product's design, enabling users with valid credentials to run commands on the system via the web interface.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (modules/exploits/multi/http/nas4free_php_exec.rb) that exploits an authenticated remote code execution vulnerability in NAS4Free (CVE-2013-3631). The exploit targets the NAS4Free web interface, specifically the /exec.php endpoint, which allows an authenticated user to submit and execute arbitrary PHP code. The module first authenticates to the web interface using provided credentials (default: admin/nas4free), retrieves an authentication token from /exec.php, and then submits a specially crafted multipart/form-data POST request containing the attacker's PHP payload. The exploit is weaponized, leveraging Metasploit's payload system to deliver arbitrary PHP code, and is suitable for post-exploitation activities such as opening a shell or running system commands. The code is written in Ruby and is structured as a standard Metasploit exploit module.
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1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
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