Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXBjaDUtd2hnOS1xcjJy

netmask npm package mishandles octal input data

The netmask package before 2.0.1 for Node.js mishandles certain unexpected characters in an IP address string, such as an octal digit of 9. This (in some situations) allows attackers to bypass access control that is based on IP addresses. NOTE: this issue exists because of an incomplete fix for CVE-2021-28918.

Permalink: https://github.com/advisories/GHSA-pch5-whg9-qr2r
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXBjaDUtd2hnOS1xcjJy
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 3 years ago
Updated: 8 months ago

CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Identifiers: GHSA-pch5-whg9-qr2r, CVE-2021-29418
References:

• https://github.com/rs/node-netmask/commit/3f19a056c4eb808ea4a29f234274c67bc5a848f4
• https://sick.codes/sick-2021-011
• https://sick.codes/universal-netmask-npm-package-used-by-270000-projects-vulnerable-to-octal-input-data-server-side-request-forgery-remote-file-inclusion-local-file-inclusion-and-more-cve-2021-28918/
• https://www.npmjs.com/package/netmask
• https://nvd.nist.gov/vuln/detail/CVE-2021-29418
• https://vuln.ryotak.me/advisories/6
• https://security.netapp.com/advisory/ntap-20210604-0001/
• https://github.com/advisories/GHSA-pch5-whg9-qr2r

Repository: https://github.com/rs/node-netmask
Blast Radius: 27.8

Affected Packages