NPM Package Could Allow for Remote Code Execution

Fortify Security Team
Oct 23, 2021

A vulnerability has been discovered in the NPM package ua-parser-js that could allow for remote code execution upon installation of the affected versions. NPM is the default package manager for the Javascript runtime environment Node.js and ua-parser-js is a popular package within NPM that is used for detecting browser, engine, OS, CPU and device type and model information from User-Agent data.

THREAT INTELLIGENCE: There are reports of this vulnerability being actively exploited for malicious purpose.

SYSTEMS AFFECTED:

  • ua-parser-js version 0.7.29, 0.8.0, and 1.0.0

RISK:

Government:

  • Large and medium government entities: Medium
  • Small government entities: Medium

Businesses:

  • Large and medium business entities: Medium
  • Small business entities: Medium

Home users: Low

TECHNICAL SUMMARY:

A vulnerability has been discovered in the NPM package ua-parser-js that could allow for remote code execution upon installation of the affected versions. Malicious actors uploaded a version of ua-parser-js that contains several malicious scripts. The scripts are executed during installation and download additional malicious files that have been reported to run a cryptocurrency miner, steal saved passwords, export OS credentials, and copy the cookies database file from Chrome.

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply appropriate patches provided by NPM to vulnerable systems immediately after appropriate testing.
  • All secrets and keys stored on infected machines should be rotated immediately from a different machine.
  • Remind users not to download, accept or execute files from untrusted and unknown sources.
  • Remind users not to visit untrusted websites or follow links provided by untrusted or unknown sources.

REFERENCES:

Github:

https://github.com/advisories/GHSA-pjwm-rvh2-c87w

https://github.com/faisalman/ua-parser-js/issues/536

NPM:

https://www.npmjs.com/package/ua-parser-js

CISA:

https://us-cert.cisa.gov/ncas/current-activity/2021/10/22/malware-discovered-popular-npm-package-ua-parser-js

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