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             AUSCERT External Security Bulletin Redistribution

       Cisco Telepresence CE Software and RoomOS Software Unauthori
                    zed Token Generation Vulnerability
                             19 November 2020


        AusCERT Security Bulletin Summary

Product:           Cisco Telepresence CE Software and Cisco RoomOS Software
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Unauthorised Access -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-26068  

Original Bulletin: 

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

Cisco Telepresence CE Software and RoomOS Software Unauthorized Token
Generation Vulnerability

Priority:        Medium
Advisory ID:     cisco-sa-tp-uathracc-jWNESUfM
First Published: 2020 November 18 16:00 GMT
Version 1.0:     Final
Workarounds:     No workarounds available
Cisco Bug IDs:   CSCvu31646
CVE Names:       CVE-2020-26068
CWEs:            CWE-639


  o A vulnerability in the xAPI service of Cisco Telepresence CE Software and
    Cisco RoomOS Software could allow an authenticated, remote attacker to
    generate an access token for an affected device.

    The vulnerability is due to insufficient access authorization. An attacker
    could exploit this vulnerability by using the xAPI service to generate a
    specific token. A successful exploit could allow the attacker to use the
    generated token to enable experimental features on the device that should
    not be available to users.

    Cisco has released software updates that address this vulnerability. There
    are no workarounds that address this vulnerability.

    This advisory is available at the following link:

Affected Products

  o Vulnerable Products

    At the time of publication, this vulnerability affected vulnerable releases
    of Cisco Telepresence CE Software or Cisco RoomOS Software.

    For information about which Cisco software releases were vulnerable at the
    time of publication, see the Fixed Software section of this advisory. See
    the Details section in the bug ID(s) at the top of this advisory for the
    most complete and current information.

    Products Confirmed Not Vulnerable

    Only products listed in the Vulnerable Products section of this advisory
    are known to be affected by this vulnerability.


  o There are no workarounds that address this vulnerability.

Fixed Software

  o When considering software upgrades , customers are advised to regularly
    consult the advisories for Cisco products, which are available from the
    Cisco Security Advisories page , to determine exposure and a complete
    upgrade solution.

    In all cases, customers should ensure that the devices to be upgraded
    contain sufficient memory and confirm that current hardware and software
    configurations will continue to be supported properly by the new release.
    If the information is not clear, customers are advised to contact the Cisco
    Technical Assistance Center (TAC) or their contracted maintenance

    Fixed Releases

    Cisco Telepresence CE Software

    At the time of publication, the release information in the following table
    was accurate. See the Details section in the bug ID(s) at the top of this
    advisory for the most complete and current information.

    The left column lists Cisco software releases, and the right column
    indicates whether a release was affected by the vulnerability described in
    this advisory and which release included the fix for this vulnerability.

    Cisco Telepresence Release                  First Fixed Release
    9.10                                        9.10.3
    9.12                                        9.12.4
    9.13                                        Not vulnerable.

    Cisco RoomOS Software

    Cisco has addressed this vulnerability in Cisco RoomOS Software RoomOS July
    Drop 1 2020, which is cloud based. No user action is required. Customers
    can determine the current remediation status or software version by using
    the Help function in the service GUI.

Exploitation and Public Announcements

  o The Cisco Product Security Incident Response Team (PSIRT) is not aware of
    any public announcements or malicious use of the vulnerability that is
    described in this advisory.


  o This vulnerability was found during internal security testing.

Cisco Security Vulnerability Policy

  o To learn about Cisco security vulnerability disclosure policies and
    publications, see the Security Vulnerability Policy . This document also
    contains instructions for obtaining fixed software and receiving security
    vulnerability information from Cisco.


  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/

Revision History

  o +----------+---------------------------+----------+--------+--------------+
    | Version  |        Description        | Section  | Status |     Date     |
    | 1.0      | Initial public release.   | -        | Final  | 2020-NOV-18  |

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