CVE-2024-21505: Prototype Pollution (CVSS 7.5)

Description

Versions of the package web3-utils before 4.2.1 are vulnerable to Prototype Pollution via the utility functions format and mergeDeep, due to insecure recursive merge. An attacker can manipulate an object's prototype, potentially leading to the alteration of the behavior of all objects inheriting from the affected prototype by passing specially crafted input to these functions.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-1321 CWE-1321

References

Other References

https://github.com/web3/web3.js/commit/8ed041c6635d807b3da8960ad49e125e3d1b0e80 https://security.snyk.io/vuln/SNYK-JS-WEB3UTILS-6229337 https://github.com/web3/web3.js/commit/8ed041c6635d807b3da8960ad49e125e3d1b0e80 https://security.snyk.io/vuln/SNYK-JS-WEB3UTILS-6229337

Frequently Asked Questions

What is CVE-2024-21505? +

Versions of the package web3-utils before 4.2.1 are vulnerable to Prototype Pollution via the utility functions format and mergeDeep, due to insecure recursive merge. An attacker can manipulate an object's prototype, potentially leading to the alteration of the behavior of all objects inheriting from the affected prototype by passing specially crafted input to these functions. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-21505? +

CVE-2024-21505 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2024-21505? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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