GitHub Advisoryadvisory · npm

GHSA-4c7m-wxvm-r7gc Improper parsing of octal bytes in netmask

CRITICAL Published 2021-04-14 Modified 2022-04-01 Official page ↗
Aliases
CVE-2021-28918
Ecosystem
npm
Packages
netmask
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-20
Reviewed
2021-04-13

Affected packages

• npm netmask: < 1.1.0 → fixed in 1.1.0

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. :exclamation: NOTE: The fix for this issue was incomplete. A subsequent fix was made in version `2.0.1` which was assigned CVE-2021-29418 / GHSA-pch5-whg9-qr2r. For complete protection from this vulnerability an upgrade to version 2.0.1 or later is recommended.

Related

Alias · CVE (1)

  • CVE-2021-28918 Improper input validation of octal strings in netmask npm package v1.0.6 and below allows unauthenticated remote attackers to perform… vulnerability

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References