Vulnerabilities > CVE-2021-28918 - Incorrect Type Conversion or Cast vulnerability in Netmask Project Netmask
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
NONE Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 6 |
Common Weakness Enumeration (CWE)
References
- 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/