CVE-2020-3603: Cisco WebEx Network Recording Player ARF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
First published: Fri Nov 06 2020(Updated: )
Multiple vulnerabilities in Cisco Webex Network Recording Player for Windows and Cisco Webex Player for Windows could allow an attacker to execute arbitrary code on an affected system. The vulnerabilities are due to insufficient validation of certain elements of a Webex recording that is stored in the Advanced Recording Format (ARF) or Webex Recording Format (WRF). An attacker could exploit these vulnerabilities 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 execute arbitrary code on the affected system with the privileges of the targeted user.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Webex Meetings | <40.6.11 | |
| Cisco Webex Meetings | >=40.7.0<40.8.0 | |
| Cisco WebEx Meetings Server | =3.0 | |
| Cisco WebEx Meetings Server | =3.0-maintenance_release1 | |
| Cisco WebEx Meetings Server | =3.0-maintenance_release2 | |
| Cisco WebEx Meetings Server | =3.0-maintenance_release3 | |
| Cisco WebEx Meetings Server | =4.0 | |
| Cisco WebEx Meetings Server | =4.0-maintenance_release1 | |
| Cisco WebEx Meetings Server | =4.0-maintenance_release2 | |
| Cisco WebEx Meetings Server | =4.0-maintenance_release3 | |
| Cisco Webex |
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Reference Links
Frequently Asked Questions
What is CVE-2020-3603?
CVE-2020-3603 is a vulnerability in Cisco WebEx Network Recording Player and Cisco Webex Player for Windows that allows an attacker to execute arbitrary code on an affected system.
What is the severity of CVE-2020-3603?
The severity of CVE-2020-3603 is critical with a CVSS score of 7.8.
Which software is affected by CVE-2020-3603?
The following software versions are affected by CVE-2020-3603: Cisco Webex Meetings up to version 40.6.11, Cisco Webex Meetings up to version 40.7.0, Cisco WebEx Meetings Server version 3.0 to 3.0-maintenance_release3, and Cisco WebEx Meetings Server version 4.0 to 4.0-maintenance_release3.
How can an attacker exploit CVE-2020-3603?
An attacker can exploit CVE-2020-3603 by crafting a malicious Webex recording file and convincing a user to open it using the vulnerable Cisco WebEx Network Recording Player or Cisco Webex Player for Windows, allowing the execution of arbitrary code.
What is the recommended action to mitigate CVE-2020-3603?
To mitigate CVE-2020-3603, Cisco recommends updating to the latest available version of Cisco Webex Network Recording Player or Cisco Webex Player for Windows.
- collector/nvd-index
- collector/zdi-advisory
- alias/ZDI-20-1361
- alias/ZDI-CAN-11133
- alias/CVE-2020-3603
- vendor/cisco
- canonical/cisco webex meetings
- version/cisco webex meetings/40.7.0
- canonical/cisco webex meetings server
- version/cisco webex meetings server/3.0
- version/cisco webex meetings server/3.0-maintenance_release1
- version/cisco webex meetings server/3.0-maintenance_release2
- version/cisco webex meetings server/3.0-maintenance_release3
- version/cisco webex meetings server/4.0
- version/cisco webex meetings server/4.0-maintenance_release1
- version/cisco webex meetings server/4.0-maintenance_release2
- version/cisco webex meetings server/4.0-maintenance_release3
- canonical/cisco webex