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Malicious Package Affecting bignum package, versions >=0.12.2 <0.13.1

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Mature

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  • Snyk ID SNYK-JS-BIGNUM-5602376
  • published 25 May 2023
  • disclosed 24 May 2023
  • credit calebbrown
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Introduced: 24 May 2023

Malicious CVE NOT AVAILABLE CWE-506 Open this link in a new tab

How to fix?

Upgrade bignum to version 0.13.1 or higher.

Overview

bignum is a malicious package. The affected package versions are using node-pre-gyp to optionally download pre-built binary versions of the addon. These binaries were published on a now-expired S3 bucket which has since been claimed by a malicious third party which is now serving binaries containing malware that exfiltrates data from the user's computer.

Note:

Only versions v0.12.2 to v0.13.0 of this package contain malware. Users can continue using non-impacted versions.

v0.13.1 does not use node-pre-gyp and does not have support for downloading pre-built binaries in any form, avoiding the risk of malicious downloads.