CVE-2020-3126: Cisco Webex Meetings Multimedia Viewer Vulnerability
First published: Mon Apr 13 2020(Updated: )
vulnerability within the Multimedia Viewer feature of Cisco Webex Meetings could allow an authenticated, remote attacker to bypass security protections. The vulnerability is due to missing security warning dialog boxes when a room host views shared multimedia files. An authenticated, remote attacker could exploit this vulnerability by using the host role to share files within the Multimedia sharing feature and convincing a former room host to view that file. A warning dialog normally appears cautioning users before the file is displayed; however, the former host would not see that warning dialog, and any shared multimedia would be rendered within the user's browser. The attacker could leverage this behavior to conduct additional attacks by including malicious files within a targeted room host's browser window.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco WebEx Meetings Server | =t39.3 |
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Frequently Asked Questions
What is the vulnerability ID for this Cisco Webex Meetings vulnerability?
The vulnerability ID for this Cisco Webex Meetings vulnerability is CVE-2020-3126.
What is the severity of CVE-2020-3126 vulnerability?
The severity of CVE-2020-3126 vulnerability is low, with a CVSS score of 3.5.
How does the vulnerability in Cisco Webex Meetings affect the software?
The vulnerability affects Cisco Webex Meetings Server version t39.3.
How can an attacker exploit this vulnerability?
An authenticated, remote attacker can exploit this vulnerability to bypass security protections in the Multimedia Viewer feature of Cisco Webex Meetings.
Is there a fix available for CVE-2020-3126 vulnerability?
Yes, Cisco has released a fix for this vulnerability. Please refer to the Cisco Security Advisory for more information.
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