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A command injection vulnerability exists in Webmin through version 1.910, where any user authorized to access the 'Package Updates' module can execute arbitrary commands as root by supplying crafted input to the 'data' parameter in update.cgi.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a single exploit script (exploit.js) and a minimal README. The exploit targets Webmin <= 1.910 (CVE-2019-12840), specifically exploiting a command injection vulnerability in the package updates feature. The script is written in Node.js and automates the following steps: (1) logs into the target Webmin instance using provided credentials, (2) sends a crafted POST request to the vulnerable update.cgi endpoint to trigger command injection, and (3) sets up a local TCP listener to receive a reverse shell from the compromised server. The payload is a base64-encoded bash reverse shell command. The exploit requires network access to the target Webmin server and valid credentials. The endpoints and IP addresses are hardcoded for demonstration. The repository is operational and provides a working exploit for the specified vulnerability.
This repository contains a single Metasploit module (modules/exploits/linux/http/webmin_packageup_rce.rb) that exploits a remote command execution vulnerability (CVE-2019-12840) in Webmin versions 1.910 and below. The exploit targets the 'Package Updates' module in Webmin, allowing any authenticated user with access to this module to execute arbitrary commands as root. The module is written in Ruby and leverages the Metasploit framework's HTTP client mixin to interact with the Webmin web interface. The exploit works by logging in to Webmin, verifying the version and user privileges, and then sending a specially crafted request to the 'update.cgi' endpoint to trigger command execution. The default payload is a reverse shell, but any compatible Metasploit command payload can be used. The module requires valid Webmin credentials and network access to the Webmin service (default port 10000). The code is mature and weaponized, providing a reliable method for remote code execution on vulnerable Webmin installations.
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