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Vulnerability of IBM WebSphere Application Server Liberty: privilege escalation via openidConnectServer

Synthesis of the vulnerability 

An authenticated attacker can bypass restrictions via openidConnectServer of IBM WebSphere Application Server Liberty, in order to escalate his privileges.
Impacted systems: WebSphere AS Liberty.
Severity of this alert: 2/4.
Creation date: 05/05/2020.
Références of this alert: 6205926, CVE-2020-4421, VIGILANCE-VUL-32183.

Description of the vulnerability 

An authenticated attacker can bypass restrictions via openidConnectServer of IBM...
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This vulnerability announce impacts software or systems such as WebSphere AS Liberty.

Our Vigil@nce team determined that the severity of this cybersecurity threat is medium.

The trust level is of type confirmed by the editor, with an origin of user account.

An attacker with a expert ability can exploit this computer threat bulletin.

Solutions for this threat 

This vulnerability workaround will be public soon.
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