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CVE-2020-36732: crypto-js uses insecure random numbers

June 12, 2023 (updated January 6, 2025)

The crypto-js package before 3.2.1 for Node.js generates random numbers by concatenating the string “0.” with an integer, which makes the output more predictable than necessary.

References

  • github.com/advisories/GHSA-3w3w-pxmm-2w2j
  • github.com/brix/crypto-js
  • github.com/brix/crypto-js/commit/e4ac157d8b75b962d6538fc0b996e5d4d5a9466b
  • github.com/brix/crypto-js/compare/3.2.0...3.2.1
  • github.com/brix/crypto-js/issues/254
  • github.com/brix/crypto-js/issues/256
  • github.com/brix/crypto-js/pull/257/commits/e4ac157d8b75b962d6538fc0b996e5d4d5a9466b
  • nvd.nist.gov/vuln/detail/CVE-2020-36732
  • security.netapp.com/advisory/ntap-20230706-0003
  • security.snyk.io/vuln/SNYK-JS-CRYPTOJS-548472

Code Behaviors & Features

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Affected versions

All versions before 3.2.1

Fixed versions

  • 3.2.1

Solution

Upgrade to version 3.2.1 or above.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-330: Use of Insufficiently Random Values
  • CWE-331: Insufficient Entropy

Source file

npm/crypto-js/CVE-2020-36732.yml

Spotted a mistake? Edit the file on GitLab.

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