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             AUSCERT External Security Bulletin Redistribution

        Cisco Vision Dynamic Signage Director Reflected Cross-Site
                          Scripting Vulnerability
                              18 October 2021


        AusCERT Security Bulletin Summary

Product:           Vision Dynamic Signage Director
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Cross-site Scripting -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-34742  

Original Bulletin: 

Revision History:  October 18 2021: Updated the Summary section and Vulnerable products
                   October  7 2021: Initial Release

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

Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting

Priority:        Medium
Advisory ID:     cisco-sa-cvdsd-xss-fvdj6HK
First Published: 2021 October 6 16:00 GMT
Last Updated:    2021 October 15 21:45 GMT
Version 1.1:     Final
Workarounds:     No workarounds available
Cisco Bug IDs:   CSCvy84939
CVE Names:       CVE-2021-34742
CWEs:            CWE-79


  o A vulnerability in the web-based management interface of Cisco Vision
    Dynamic Signage Director could allow an unauthenticated, remote attacker to
    conduct a cross-site scripting (XSS) attack against a user of the interface
    on an affected device.

    This vulnerability is due to insufficient validation of user-supplied input
    by the web-based management interface. An attacker could exploit this
    vulnerability by persuading a user of the interface to click a crafted
    link. A successful exploit could allow the attacker to execute arbitrary
    script code in the context of the interface or access sensitive,
    browser-based information.

    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 Cisco Vision
    Dynamic Signage Director.

    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

    At the time of publication, the release information in the following table
    (s) 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 firmware 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 Vision Dynamic Signage Director Firmware Release  First Fixed Release
    6.4 and earlier                                         6.4 SP2

    To download the firmware from the Software Center on Cisco.com, choose
    Browse all > Video > Sports and Entertainment > Cisco Vision > Cisco Vision
    Dynamic Signage Director .

Exploitation and Public Announcements

  o The Cisco PSIRT is not aware of any public announcements or malicious use
    of the vulnerability that is described in this advisory.


  o Cisco would like to thank security researcher Simone Quatrini of SureCloud
    for reporting this vulnerability.

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.

Related to This Advisory

  o Cross-Site Scripting


  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cvdsd-xss-fvdj6HK

Revision History

  o +---------+---------------------------+------------+--------+-------------+
    | Version |        Description        |  Section   | Status |    Date     |
    |         | Updated the Summary       |            |        |             |
    |         | section to indicate that  | Summary,   |        |             |
    |         | fixed releases are        | Vulnerable |        |             |
    | 1.1     | available. Updated the    | Products,  | Final  | 2021-OCT-15 |
    |         | Vulnerable Products       | and Fixed  |        |             |
    |         | section. Added fixed      | Releases   |        |             |
    |         | release information.      |            |        |             |
    | 1.0     | Initial public release.   | -          | Final  | 2021-OCT-06 |

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