What is the vulnerability ID?

The vulnerability ID is CVE-2021-20440.

What is the severity of CVE-2021-20440?

The severity of CVE-2021-20440 is medium with a CVSS score of 6.4.

What is the affected software?

The affected software includes IBM API Connect versions 10.0.0.0 and 2018.4.1.0 through 2018.4.1.13.

How does the vulnerability in IBM API Manager allow unauthorized registration?

The vulnerability allows an attacker who is a valid user in the user registry used by API Manager to register themselves as a member of an API provider organization using a stolen invitation link.

How can I fix CVE-2021-20440?

To fix the vulnerability, apply the necessary patches provided by IBM.

Vulnerability/
CVE-2021-20440

medium

6.4

14/3/2021

15/3/2021

16/9/2024

CVE-2021-20440

First published: Sun Mar 14 2021(Updated: )

IBM API Connect 10.0.0.0, and 2018.4.1.0 through 2018.4.1.13 does not restrict member registration to the intended recepient. An attacker who is a valid user in the user registry used by API Manager can use a stolen invitation link and register themselves as a member of an API provider organization. IBM X-Force ID: 196536.

Credit: psirt@us.ibm.com

Affected Software	Affected Version	How to fix
IBM API Connect	>=2018.4.1.0<=2018.4.1.13
IBM API Connect	=10.0.0.0
IBM API Connect	<=API Connect V10.0.0
IBM API Connect	<=V2018.4.1.0-2018.4.1.13

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

IBM-6430107

Frequently Asked Questions

What is the vulnerability ID?
The vulnerability ID is CVE-2021-20440.
What is the severity of CVE-2021-20440?
The severity of CVE-2021-20440 is medium with a CVSS score of 6.4.
What is the affected software?
The affected software includes IBM API Connect versions 10.0.0.0 and 2018.4.1.0 through 2018.4.1.13.
How does the vulnerability in IBM API Manager allow unauthorized registration?
The vulnerability allows an attacker who is a valid user in the user registry used by API Manager to register themselves as a member of an API provider organization using a stolen invitation link.
How can I fix CVE-2021-20440?
To fix the vulnerability, apply the necessary patches provided by IBM.

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collector/ibm-support
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agent/trending
vendor/ibm
canonical/ibm api connect
version/ibm api connect/2018.4.1.0
version/ibm api connect/2018.4.1.13
version/ibm api connect/10.0.0.0
version/ibm api connect/api connect v10.0.0
version/ibm api connect/v2018.4.1.0-2018.4.1.13

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