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CVE-2019-16662 is a critical unauthenticated remote code execution vulnerability in rConfig version 3.9.2. The vulnerability exists in the ajaxServerSettingsChk.php script, where the 'rootUname' GET parameter is passed directly to the PHP exec() function without input sanitization. This allows an attacker to execute arbitrary system commands on the server by sending a crafted GET request. The vulnerability is exploitable without authentication and depends on the presence of the '/install' directory.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a single Metasploit module (modules/exploits/unix/webapp/rconfig_install_cmd_exec.rb) that exploits an unauthenticated command injection vulnerability (CVE-2019-16662) in rConfig versions 3.9.2 and prior. The vulnerability exists because the /install/ directory and its files, specifically /lib/ajaxHandlers/ajaxServerSettingsChk.php, are not removed after installation, allowing remote attackers to execute arbitrary commands via a crafted HTTP GET request. The module supports both command execution and staged payloads (reverse shell, Meterpreter) and targets Unix/Linux platforms. The exploit is weaponized, allowing for easy payload customization and integration into the Metasploit framework. The main attack vector is network-based, targeting the exposed HTTP endpoint. The repository is structured as a single Ruby file compatible with Metasploit, and all exploit logic is contained within this file.
This repository contains an exploit for CVE-2019-16662, targeting rConfig version 3.9.2. The exploit is implemented in a single Python script (rConfig-preauth.py) and is designed to achieve unauthenticated remote code execution by abusing a vulnerable PHP handler in the rConfig installation directory. The script takes three arguments: the target URL, the attacker's IP, and the port for the reverse shell. It first checks if the /install directory exists on the target, then crafts a PHP payload that opens a reverse shell to the attacker's machine. The payload is delivered via a GET request to the vulnerable ajaxServerSettingsChk.php endpoint. The repository also includes a brief README describing the exploit. The exploit is operational and provides a working reverse shell if the target is vulnerable and accessible.
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