CVE Vulnerabilities

CVE-2021-1372

Exposure of Sensitive Information Through Data Queries

Published: Feb 17, 2021 | Modified: Nov 07, 2023
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability in Cisco Webex Meetings Desktop App and Webex Productivity Tools for Windows could allow an authenticated, local attacker to gain access to sensitive information on an affected system. This vulnerability is due to the unsafe usage of shared memory by the affected software. An attacker with permissions to view system memory could exploit this vulnerability by running an application on the local system that is designed to read shared memory. A successful exploit could allow the attacker to retrieve sensitive information from the shared memory, including usernames, meeting information, or authentication tokens. Note: To exploit this vulnerability, an attacker must have valid credentials on a Microsoft Windows end-user system and must log in after another user has already authenticated with Webex on the same end-user system.

Weakness

When trying to keep information confidential, an attacker can often infer some of the information by using statistics.

Affected Software

Name Vendor Start Version End Version
Webex_meetings Cisco * 40.6 (excluding)
Webex_meetings Cisco * 40.10 (excluding)
Webex_meetings_server Cisco * 4.0 (excluding)
Webex_meetings_server Cisco 4.0 (including) 4.0 (including)
Webex_meetings_server Cisco 4.0-maintenance_release1 (including) 4.0-maintenance_release1 (including)
Webex_meetings_server Cisco 4.0-maintenance_release2 (including) 4.0-maintenance_release2 (including)
Webex_meetings_server Cisco 4.0-maintenance_release3 (including) 4.0-maintenance_release3 (including)
Webex_meetings_server Cisco 4.0-maintenance_release3_security_patch3 (including) 4.0-maintenance_release3_security_patch3 (including)

Potential Mitigations

References