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Security Bulletin: A security vulnerability in Node.js netmask module affects IBM Cloud Pak for Multicloud Management Managed Service

Security Bulletin


A security vulnerability in Node.js netmask module affects IBM Cloud Pak for Multicloud Management Managed Service.

Vulnerability Details

CVEID:   CVE-2021-28918
DESCRIPTION:   Node.js netmask module is vulnerable to server-side request forgery, caused by the improper handling of mixed-format IP addresses. By using a specially-crafted argument using octal literals, an attacker could exploit this vulnerability to conduct SSRF, RFI, and LFI attacks to gain access to intranets, VPNs, containers, adjacent VPC instances, or LAN hosts.
CVSS Base score: 9.1
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Cloud Pak for Multicloud Management Infrastructure ManagementAll


Upgrade to IBM Cloud Pak for Multicloud Management 2.3 by following the instructions in

Workarounds and Mitigations


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Change History

11 May 2021: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location


[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFC4F","label":"IBM Cloud Pak for Multicloud Management"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"2.3","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
19 May 2021