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Vulnerability of Connect2id Nimbus JOSE+JWT: privilege escalation via JWT Parsing

Synthesis of the vulnerability 

An attacker can bypass restrictions via JWT Parsing of Connect2id Nimbus JOSE+JWT, in order to escalate his privileges.
Vulnerable software: Db2 UDB, QRadar SIEM, Oracle Fusion Middleware, Oracle OIT, WebLogic, oVirt, RSA Authentication Manager.
Severity of this announce: 3/4.
Creation date: 20/03/2020.
Références of this computer vulnerability: 6198380, 6449664, cpujan2021, CVE-2019-17195, DSA-2020-066, DSA-2020-067, VIGILANCE-VUL-31843.

Description of the vulnerability 

An attacker can bypass restrictions via JWT Parsing of Connect2id Nimbus JOSE+JWT, in order to escalate his privileges.
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This computer vulnerability note impacts software or systems such as Db2 UDB, QRadar SIEM, Oracle Fusion Middleware, Oracle OIT, WebLogic, oVirt, RSA Authentication Manager.

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

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

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

Solutions for this threat 

IBM DB2: patch for included libraries.
A patch for each platform for versions 11.1 and 11.5 is indicated in information sources.

IBM QRadar SIEM: fixed versions for composants.
The following versions are fixed:
  QRadar / QRM / QVM / QRIF / QNI 7.3.3 Patch 8: https://www.ibm.com/support/pages/node/ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM+Security+QRadar+Vulnerability+Manager&release=All&platform=All&function=fixId&fixids=7.3.3-QRADAR-QRSIEM-20210427222138&includeRequisites=1&includeSupersedes=0&downloadMethod=http&source=SAR
  QRadar / QRM / QVM / QRIF / QNI 7.4.2 Patch 3: https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM+Security+QRadar+SIEM&release=7.4.0&platform=Linux&function=fixId&fixids=7.4.2-QRADAR-QRSIEM-20210323172312&includeRequisites=1&includeSupersedes=0&downloadMethod=http

Oracle Fusion Middleware: CPU of January 2021.
A Critical Patch Update is available:
  https://www.oracle.com/security-alerts/cpujan2021.html

oVirt: version 4.3.9.
The version 4.3.9 is fixed:
  https://www.ovirt.org/download/

RSA Authentication Manager: version 8.4 P11.
The version 8.4 P11 is fixed:
  https://www.dell.com/support/
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