Zoom

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.0223
   ZSB-22031 - Insecure key generation for Zoom Rooms for macOS Clients
                              13 January 2023

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Zoom
Publisher:         Zoom
Operating System:  macOS
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-36925  

Original Bulletin: 
   https://explore.zoom.us/en/trust/security/security-bulletin/?filter-cve=&filter=&keywords=ZSB-22031+

Comment: Comment: CVSS (Max):  4.4 CVE-2022-36925 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L)
                  CVSS Source: Zoom
                  Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

- --------------------------BEGIN INCLUDED TEXT--------------------

ZSB-22031 - Insecure key generation for Zoom Rooms for macOS Clients 

Published: 01/06/2023

CVE: CVE-2022-36925

Severity : Medium

CVSS Score : 4.4

CVSS Vector String : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Description : Zoom Rooms for macOS clients before version 5.11.4 contain an
insecure key generation mechanism. The encryption key used for IPC between the
Zoom Rooms daemon service and the Zoom Rooms client was generated using
parameters that could be obtained by a local low-privileged application. That
key can then be used to interact with the daemon service to execute privileged
functions and cause a local denial of service.

Users can help keep themselves secure by applying current updates or
downloading the latest Zoom software with all current security updates from
https://zoom.us/download.

Affected Products :

  o Zoom Rooms for macOS before version 5.11.4

Source : Reported by Kirin (Pwnrin)

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. 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. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: https://auscert.org.au/gpg-key/
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=b/yl
-----END PGP SIGNATURE-----