CVE-2021-29418

Medium

Description

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.

SeverityMedium
CVSS5.3
Exploit probability—
ProductNetmask
PublishedMar 30, 2021
First seenMar 30, 2021

How to fix

Update
  • netmask_project netmask2.0.1 or later

Affected products

ProductAffected versionsFixed in
netmask_project netmaskv < 2.0.12.0.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2021-29418 · Netmask · Dark Radar