CVE-2020-4421

Red Hat Security Advisory 2020-2054-01

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

IBM WebSphere Application Liberty versiones 19.0.0.5 hasta 20.0.0.4, podría permitir a un usuario autenticado que usa openidconnect falsificar la identificación de otros usuarios. ID de IBM X-Force: 180084.

Open Liberty is a lightweight open framework for building fast and efficient cloud-native Java microservices. This release of Open Liberty 20.0.0.5 serves as a replacement for Open Liberty 20.0.0.4 and includes security fixes, bug fixes, and enhancements. For specific information about this release, see links in the References section. Issues addressed include information leakage and spoofing vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-30 CVE Reserved
2020-05-06 CVE Published
2024-09-17 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-290: Authentication Bypass by Spoofing

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://exchange.xforce.ibmcloud.com/vulnerabilities/180084	2021-07-21
https://www.ibm.com/support/pages/node/6205926	2021-07-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ibm Search vendor "Ibm"		Websphere Application Server Search vendor "Ibm" for product "Websphere Application Server"				>= 19.0.0.5 < 20.0.0.5 Search vendor "Ibm" for product "Websphere Application Server" and version " >= 19.0.0.5 < 20.0.0.5"		liberty		Affected