What is the severity of CVE-2020-4421?

The severity of CVE-2020-4421 is medium with a CVSS score of 5.4.

How can an authenticated user exploit CVE-2020-4421?

An authenticated user can exploit CVE-2020-4421 by using openidconnect to spoof another user's identity.

Which IBM products are affected by CVE-2020-4421?

IBM Cloud APM Base Private 8.1.4, IBM Cloud APM Advanced Private 8.1.4, and IBM WebSphere Application Server version 19.0.0.5 through 20.0.0.4 are affected by CVE-2020-4421.

Where can I find more information about CVE-2020-4421?

For more information about CVE-2020-4421, you can refer to the following links: [IBM X-Force ID: 180084](https://exchange.xforce.ibmcloud.com/vulnerabilities/180084), [IBM support page](https://www.ibm.com/support/pages/node/6205926), [IBM support page](https://www.ibm.com/support/pages/node/6417137).

What is the Common Weakness Enumeration (CWE) ID for CVE-2020-4421?

The Common Weakness Enumeration (CWE) ID for CVE-2020-4421 is 290.

Vulnerability/
CVE-2020-4421

medium

5.5

CWE

290

6/5/2020

17/9/2024

CVE-2020-4421

First published: Wed May 06 2020(Updated: )

IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.

Credit: psirt@us.ibm.com

Affected Software	Affected Version	How to fix
Ibm Websphere Application Server	>=19.0.0.5<20.0.0.5
	<=8.1.4
	<=8.1.4

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

IBM-6417137

Frequently Asked Questions

What is the severity of CVE-2020-4421?
The severity of CVE-2020-4421 is medium with a CVSS score of 5.4.
How can an authenticated user exploit CVE-2020-4421?
An authenticated user can exploit CVE-2020-4421 by using openidconnect to spoof another user's identity.
Which IBM products are affected by CVE-2020-4421?
IBM Cloud APM Base Private 8.1.4, IBM Cloud APM Advanced Private 8.1.4, and IBM WebSphere Application Server version 19.0.0.5 through 20.0.0.4 are affected by CVE-2020-4421.
Where can I find more information about CVE-2020-4421?
For more information about CVE-2020-4421, you can refer to the following links: [IBM X-Force ID: 180084](https://exchange.xforce.ibmcloud.com/vulnerabilities/180084), [IBM support page](https://www.ibm.com/support/pages/node/6205926), [IBM support page](https://www.ibm.com/support/pages/node/6417137).
What is the Common Weakness Enumeration (CWE) ID for CVE-2020-4421?
The Common Weakness Enumeration (CWE) ID for CVE-2020-4421 is 290.

collector/nvd-index
agent/type
agent/severity
agent/weakness
agent/author
agent/references
agent/description
collector/ibm-support
source/IBM
agent/software-canonical-lookup
agent/softwarecombine
agent/tags
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/first-publish-date
agent/event
agent/trending
vendor/ibm
canonical/ibm websphere application server
version/ibm websphere application server/19.0.0.5
canonical/ibm cloud apm, base private
version/ibm cloud apm, base private/8.1.4
canonical/ibm cloud apm, advanced private
version/ibm cloud apm, advanced private/8.1.4

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