CVE-2020-3604: Cisco WebEx Network Recording Player ARF File Parsing Stack-based Buffer Overflow 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 | |
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Reference Links
Frequently Asked Questions
What is CVE-2020-3604?
CVE-2020-3604 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.
How severe is CVE-2020-3604?
CVE-2020-3604 has a severity rating of 7.8, making it critical.
What is the affected software for CVE-2020-3604?
The affected software includes Cisco Webex Meetings versions up to 40.6.11 and versions between 40.7.0 and 40.8.0.
How can an attacker exploit CVE-2020-3604?
An attacker can exploit CVE-2020-3604 by sending a specially crafted Webex recording file, which triggers a stack-based buffer overflow and allows them to execute arbitrary code on the system.
How can I fix CVE-2020-3604?
To fix CVE-2020-3604, it is recommended to update to the latest version of Cisco Webex Meetings.
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