PT-2020-4639 · Cisco · Cisco Webex Meetings Desktop App

Published 2020-11-04 · Updated 2020-11-24 · CVE-2020-3588

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Cisco Webex Meetings Desktop App for Windows (affected versions not specified)

Description A vulnerability in virtualization channel messaging could allow a local attacker to execute arbitrary code on a targeted system. This issue occurs when the app is deployed in a virtual desktop environment and using virtual environment optimization, due to improper validation of messages processed by the Cisco Webex Meetings Desktop App. A local attacker with limited privileges could exploit this vulnerability by sending malicious messages to the affected software using the virtualization channel interface. A successful exploit could allow the attacker to modify the underlying operating system configuration, enabling the execution of arbitrary code with the privileges of a targeted user.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

BDU:2020-05191

CVE-2020-3588

Affected Products

Cisco Webex Meetings Desktop App

References · 6

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-vdi-qQrpBwuJ · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3588 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3588 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-05191 · Security Note
• https://t.me/cibsecurity/16003 · Telegram Post
• https://t.me/cvenotify/5277 · Telegram Post