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AUSCERT External Security Bulletin Redistribution
ESB-2021.1173
Cisco Webex Meetings for Android Avatar Modification Vulnerability
8 April 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Webex Meetings for Android
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Modify Arbitrary Files -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1467
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-andro-iac-f3UR8frB
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Cisco Webex Meetings for Android Avatar Modification Vulnerability
Priority: Medium
Advisory ID: cisco-sa-webex-andro-iac-f3UR8frB
First Published: 2021 April 7 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvw45870
CVE Names: CVE-2021-1467
CWEs: CWE-284
Summary
o A vulnerability in Cisco Webex Meetings for Android could allow an
authenticated, remote attacker to modify the avatar of another user.
This vulnerability is due to improper authorization checks. An attacker
could exploit this vulnerability by sending a crafted request to the Cisco
Webex Meetings client of a targeted user of a meeting in which they are
both participants. A successful exploit could allow the attacker to modify
the avatar of the targeted user.
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-webex-andro-iac-f3UR8frB
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco Webex
Meetings for Android releases earlier than Release 41.3.
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, Cisco Webex Meetings for Android releases 41.3
and later contained the fix for this vulnerability.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
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.
Source
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.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-andro-iac-f3UR8frB
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-APR-07 |
+----------+---------------------------+----------+--------+--------------+
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