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Vulnerability of JBoss RESTEasy: information disclosure via MediaTypeHeaderDelegate Injection

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via MediaTypeHeaderDelegate Injection of JBoss RESTEasy, in order to obtain sensitive information.
Vulnerable software: RESTEasy JBoss OpenSource, JBoss EAP by Red Hat, Red Hat SSO.
Severity of this announce: 2/4.
Creation date: 11/06/2020.
Références of this computer vulnerability: CVE-2020-1695, RESTEASY-2559, RHSA-2020:2106-01, RHSA-2020:2107-01, RHSA-2020:2108-01, RHSA-2020:2112-01, RHSA-2020:2113-01, RHSA-2020:2511-01, RHSA-2020:2512-01, RHSA-2020:2513-01, RHSA-2020:2515-01, VIGILANCE-VUL-32521.

Description of the vulnerability 

An attacker can bypass access restrictions to data via MediaTypeHeaderDelegate I...
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This computer threat announce impacts software or systems such as RESTEasy JBoss OpenSource, JBoss EAP by Red Hat, Red Hat SSO.

Our Vigil@nce team determined that the severity of this computer vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this cybersecurity alert.

Solutions for this threat 

Workarounds for this vulnerability are not yet public.
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