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Vulnerability of MongoDB Server: privilege escalation via Deleted User Persistent Session

Synthesis of the vulnerability 

An attacker can bypass restrictions via Deleted User Persistent Session of MongoDB Server, in order to escalate his privileges.
Impacted products: MongoDB Server.
Severity of this bulletin: 1/4.
Creation date: 07/08/2019.
Références of this threat: CVE-2019-2386, TALOS-2019-0829, VIGILANCE-VUL-29973.

Description of the vulnerability 

An attacker can bypass restrictions via Deleted User Persistent Session of MongoDB Server, in order to escalate his privileges.
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This threat note impacts software or systems such as MongoDB Server.

Our Vigil@nce team determined that the severity of this cybersecurity note is low.

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

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this vulnerability note.

Solutions for this threat 

MongoDB Server: version 4.0.9.
The version 4.0.9 is fixed:
  https://www.mongodb.com/download-center/community

MongoDB Server: version 3.6.13.
The version 3.6.13 is fixed:
  https://www.mongodb.com/download-center/community

MongoDB Server: version 3.4.22.
The version 3.4.22 is fixed:
  https://www.mongodb.com/download-center/community
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