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A remote code execution vulnerability exists in mongo-express before version 0.54.0 due to improper use of the Node.js 'vm' module in conjunction with endpoints that invoke the 'toBSON' method. This allows attackers to execute arbitrary commands on the server by exploiting the unsafe execution context provided by the 'vm' dependency.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a proof-of-concept (PoC) exploit for CVE-2019-10758, a remote code execution vulnerability in mongo-express <=0.53.0. The repository contains three files: a README.md with setup and exploitation instructions, a main.js script that crafts the exploit payload, and a package-lock.json for dependencies. The exploit works by sending a specially crafted payload to the /checkValid endpoint of a locally running mongo-express instance, leveraging server-side JavaScript injection to execute arbitrary system commands. The provided payload demonstrates launching the Calculator app on macOS, but any command could be executed. The exploit requires the vulnerable mongo-express to be running with default credentials and accessible on http://localhost:8081. The main.js file is the core exploit script, while the README provides both a cURL-based and script-based exploitation method. No detection or fake code is present; this is a functional PoC exploit.
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