Main Vulnerability Database Vulnerabilities #VU25808

Input validation error in Cisco Systems, Inc products - CVE-2020-3127

Published: March 6, 2020

Vulnerability identifier: #VU25808

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-3127

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists in Cisco Webex Network Recording Player for Windows and Cisco Webex Player for Windows due to insufficient validation of certain elements within a Webex recording that is stored in either the Advanced Recording Format (ARF) or the Webex Recording Format (WRF). A remote attacker can trick victim to open a specially crafted ARF or WRF file and execute arbitrary code on the system.

Affected software

Cisco Webex Meetings
Cisco Webex Meetings Online
Cisco WebEx Meetings Server

How to mitigate CVE-2020-3127

Install updates from vendor's website.

Cisco Webex Meetings - addressed in versions 39.5.17, 39.11.0, 40.0
Cisco Webex Meetings Online - update to 1.3.43
Cisco WebEx Meetings Server - addressed in versions 3.0MR3 patch 1, 4.0MR2 patch 2

External References

Related Security Bulletins