CVE-2020-3321: Cisco Webex Network Recording Player and Cisco Webex Player Denial of Service Vulnerability
First published: Wed Jun 03 2020(Updated: )
A vulnerability in Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows could allow an attacker to cause a process crash resulting in a Denial of service (DoS) condition for the player application on an affected system. The vulnerability exists due to insufficient validation of certain elements with a Webex recording stored in either the Advanced Recording Format (ARF) or the Webex Recording Format (WRF). An attacker could exploit this vulnerability by sending a user a malicious ARF or WRF file through a link or email attachment and persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to cause the Webex player application to crash when trying to view the malicious file.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Webex Player | <3.0 | |
| Cisco Webex Player | =3.0 | |
| Cisco Webex Player | =3.0-maintenance_release1 | |
| Cisco Webex Player | =3.0-maintenance_release2 | |
| Cisco Webex Player | =4.0 | |
| Cisco Webex Player | =4.0-maintenance_release1 | |
| Cisco Webex Player | =4.0-maintenance_release2 | |
| Cisco Webex Network Recording Player | <3.0 | |
| Cisco Webex Network Recording Player | =3.0 | |
| Cisco Webex Network Recording Player | =3.0-maintenance_release1 | |
| Cisco Webex Network Recording Player | =3.0-maintenance_release2 | |
| Cisco Webex Network Recording Player | =4.0 | |
| Cisco Webex Network Recording Player | =4.0-maintenance_release1 | |
| Cisco Webex Network Recording Player | =4.0-maintenance_release2 |
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Frequently Asked Questions
What is CVE-2020-3321?
CVE-2020-3321 is a vulnerability in Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows that could allow an attacker to cause a process crash resulting in a Denial of Service (DoS) condition.
Which software is affected by CVE-2020-3321?
Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows versions 3.0 to 4.0 are affected by CVE-2020-3321.
What is the severity of CVE-2020-3321?
The severity of CVE-2020-3321 is medium (CVSS score 3.3).
How can an attacker exploit CVE-2020-3321?
CVE-2020-3321 can be exploited by an attacker by causing a process crash in the player application, leading to a denial of service.
Is there a fix available for CVE-2020-3321?
Yes, Cisco has released patches to address the vulnerability. It is recommended to update to the latest version of Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows.
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- vendor/cisco
- canonical/cisco webex player
- version/cisco webex player/3.0
- version/cisco webex player/3.0-maintenance_release1
- version/cisco webex player/3.0-maintenance_release2
- version/cisco webex player/4.0
- version/cisco webex player/4.0-maintenance_release1
- version/cisco webex player/4.0-maintenance_release2
- canonical/cisco webex network recording player
- version/cisco webex network recording player/3.0
- version/cisco webex network recording player/3.0-maintenance_release1
- version/cisco webex network recording player/3.0-maintenance_release2
- version/cisco webex network recording player/4.0
- version/cisco webex network recording player/4.0-maintenance_release1
- version/cisco webex network recording player/4.0-maintenance_release2