CVE-2021-28918 Information

Description

Improper input validation of octal strings in netmask npm package v1.0.6 and below allows unauthenticated remote attackers to perform indeterminate SSRF RFI and LFI attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on netmask to filter IPs and reach critical VPN or LAN hosts.

CVSS Vector

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

Reference

https://github.com/rs/node-netmask https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-011.md https://www.bleepingcomputer.com/news/security/critical-netmask-networking-bug-impacts-thousands-of-applications/ https://www.npmjs.com/package/netmask https://github.com/advisories/GHSA-pch5-whg9-qr2r https://security.netapp.com/advisory/ntap-20210528-0010/ https://rootdaemon.com/2021/03/29/vulnerability-in-netmask-npm-package-affects-280000-projects/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

9.1