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Vulnerability of Drupal SAML Service Provider: privilege escalation

Synthesis of the vulnerability 

An attacker can bypass restrictions of Drupal SAML Service Provider, in order to escalate his privileges.
Vulnerable systems: Drupal Modules ~ not comprehensive.
Severity of this threat: 2/4.
Creation date: 12/03/2020.
Références of this weakness: DRUPAL-SA-CONTRIB-2020-006, VIGILANCE-VUL-31772.

Description of the vulnerability 

An attacker can bypass restrictions of Drupal SAML Service Provider, in order to escalate his privileges.
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This vulnerability bulletin impacts software or systems such as Drupal Modules ~ not comprehensive.

Our Vigil@nce team determined that the severity of this security note is medium.

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 note.

Solutions for this threat 

Drupal SAML Service Provider: version 8.x-3.7.
The version 8.x-3.7 is fixed:
  https://www.drupal.org/project/saml_sp/releases/8.x-3.7
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