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                         ZMCIRT Vulnerability Bulletin

                             ZMC-2021.08.26.0900
             MongoDB: Increased privileges - Existing account
                               26th August 2021

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Product:           MongoDB
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-2386  

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-5052-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running MongoDB check for an updated version of the software for 
         their operating system.


USN-5052-1: MongoDB vulnerability
26 August 2021

MongoDB could provide unintended access.
Releases

  o Ubuntu 20.04 LTS
  o Ubuntu 18.04 LTS

Packages

  o mongodb - Document-oriented database

Details

MongoDB would fail to properly invalidate existing sessions for deleted
users. This could allow a remote authenticated attacker to gain elevated
privileges if their user account was recreated with elevated privileges.

Update instructions

The problem can be corrected by updating your system to the following package
versions:

Ubuntu 20.04

  o mongodb-server - 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2
  o mongodb-clients - 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2
  o mongodb-server-core - 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2

Ubuntu 18.04

  o mongodb-server - 1:3.6.3-0ubuntu1.3
  o mongodb-clients - 1:3.6.3-0ubuntu1.3
  o mongodb-server-core - 1:3.6.3-0ubuntu1.3

In general, a standard system update will make all the necessary changes.

References

  o CVE-2019-2386

 
ZMCIRT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. ZMCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

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