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sdc-check

Small tool to inform you about potential risks in your project dependencies list:

  • Lock file is not safe (lockfile-is-not-safe). During the development process a malicious actor could replace URLs in a lock file to package with malicious code (it is especially dangerous because it is hard to catch in PR review)

  • The newest package version is too new (package-is-too-new). A new version of a package could be vulnerable. It might be safer to wait X days before upgrading to the new version and let community test it

  • Installation Script (install-scripts). An attacker can use installation scripts to run commands that perform malicious acts through the package installation step

  • Obfuscated code (obfuscated-code). A package contains obfuscated code which may point to attempt of hiding potentially malicious code

  • A package has OS scripts (has-os-scripts). An attacker can use .bat/.sh scripts to execute malicious actions (downloading and launching mining apps, etc)

  • A package script has shell commands (dangerous-shell-commands). Package script could have potentially dangerous commands to perform malicious actions (curl, wget, chmod, cacls, etc)

  • The newest package version is released after a long period of inactivity (released-after-long-period-of-inactivity). There is a possibility that an attacker could hijack an account and publish malicious code

  • Unmaintained Package (unmaintained-package). A package has no updates for at least one year

  • Too many decision makers (too-many-decision-makers). A package with too many maintainers/publishers will provide an attacker many targets to exploit account takeover and social engineering attacks

  • No source code repository (no-source-code). When a package has no source code repository/homepage the access to review source code is restricted, forcing users to trust a package blindly

Usage

Add to your project

Add new npm command to script section in your package.json

"scripts": {
  "sdc-check": "sdc-check -d .",
}

Use in your CI pipeline

Add new step to your pipeline

# Github Actions example:
- name: Check dependencies with sdc-check
run: yarn sdc-check

Configure

Add new "sdc-check" section in your package.json to change defaults

  • options define metrics behaviour
  • errors define set of metrics when audit should fail if those metrics won't pass
"sdc-check": {
  "options": {
    "limitOfDecisionMakers": 7,
    "daysBeforeUpgradeToNewVersion": 5,
    "monthsOfInactivityAllowed": 10
  },
  "errors": [
    "package-is-too-new",
    "lockfile-is-not-safe",
    "has-os-scripts",
    "dangerous-shell-commands"
  ]
}

Ignore errors (do it wisely)

Add .sdccheckignore to your project root directory

# Ignore errors caused by unmaintained-package metric for sdc-check@1.0.0
sdc-check@1.0.0 | unmaintained-package

# Ignore all errors for sdc-check@1.0.0
sdc-check@1.0.0

# Ignore errors caused by unmaintained-package and
# released-after-long-period-of-inactivity metrics for sdc-check
sdc-check | unmaintained-package, released-after-long-period-of-inactivity

# Ignore all errors for sdc-check
sdc-check

Check npm package

Find out more about a package before adding it to your dependencies list

npx sdc-check -p ua-parser-js -v 1.0.2

Wandering what has changed in the newest version of some package?

Use npm diff command to find out

npm diff --diff=dependency@1.2.3 --diff=dependency@1.3.5

Common threats in supply chain security

  1. Malicious code injection: During the development process an attacker could add malicious code to a package codebase (it is dangerous because it may be hard to catch in PR review).

  2. Malicious package release: An attacker may publish malicious packages and hence trick other users into installing or depending on such packages.

  3. Social Engineering: An attacker may manipulate a maintainer to hand over sensitive information.

  4. Account Takeover: An attacker may compromise the credentials of a maintainer to inject malicious code under the maintainer’s name.

  5. Ownership transfer: An attacker can show enthusiasm to maintain popular abandoned packages and transfer the ownership of a package.

  6. Remote execution: An attacker may target a package by compromising the third-party services used by that package.

Roadmap

Status Name Description
To do Expired Maintainer Domain An attacker can hijack a package if a maintainer’s domain is expired (info)

Install

npm i -D sdc-check

or

yarn add -D sdc-check

Acknowledgments

License

MIT

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Small tool to inform you about potential risks in project dependencies list

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