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AUSCERT External Security Bulletin Redistribution
ESB-2021.3326.2
Cisco Vision Dynamic Signage Director Reflected Cross-Site
Scripting Vulnerability
18 October 2021
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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:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cvdsd-xss-fvdj6HK
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
Vulnerability
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
Summary
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:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cvdsd-xss-fvdj6HK
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.
Workarounds
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
providers.
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.
Source
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
URL
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 |
+---------+---------------------------+------------+--------+-------------+
- --------------------------END INCLUDED TEXT--------------------
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