// For flags

CVE-2020-3142

Cisco Webex Meetings Suite and Cisco Webex Meetings Online Unauthenticated Meeting Join Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in Cisco Webex Meetings Suite sites and Cisco Webex Meetings Online sites could allow an unauthenticated, remote attendee to join a password-protected meeting without providing the meeting password. The connection attempt must initiate from a Webex mobile application for either iOS or Android. The vulnerability is due to unintended meeting information exposure in a specific meeting join flow for mobile applications. An unauthorized attendee could exploit this vulnerability by accessing a known meeting ID or meeting URL from the mobile device’s web browser. The browser will then request to launch the device’s Webex mobile application. A successful exploit could allow the unauthorized attendee to join the password-protected meeting. The unauthorized attendee will be visible in the attendee list of the meeting as a mobile attendee. Cisco has applied updates that address this vulnerability and no user action is required. This vulnerability affects Cisco Webex Meetings Suite sites and Cisco Webex Meetings Online sites releases earlier than 39.11.5 and 40.1.3.

Una vulnerabilidad en los sitios de Cisco Webex Meetings Suite y los sitios de Cisco Webex Meetings Online podría permitir que un asistente remoto no autenticado se una a una reunión protegida por contraseña sin proporcionar la contraseña de la reunión. El intento de conexión debe iniciarse desde una aplicación móvil Webex para iOS o Android. La vulnerabilidad se debe a la exposición involuntaria de información de la reunión en un flujo de reunión de reunión específico para aplicaciones móviles. Un asistente no autorizado podría aprovechar esta vulnerabilidad accediendo a un ID de reunión o URL de reunión conocidos El navegador web móvil device’s . Luego, el navegador solicitará iniciar la aplicación device’s móvil Webex. Una explotación con éxito podría permitir que el asistente no autorizado se una a la reunión protegida por contraseña. El asistente no autorizado estará visible en la lista de asistentes de la reunión como asistente móvil. Cisco ha aplicado actualizaciones que abordan esta vulnerabilidad y no se requiere ninguna acción del usuario. Esta vulnerabilidad afecta a los sitios de Cisco Webex Meetings Suite y a los lanzamientos de sitios en línea de Cisco Webex Meetings anteriores a la versión 39.11.5 y 40.1.3.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-01-26 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-11-15 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-284: Improper Access Control
  • CWE-306: Missing Authentication for Critical Function
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Webex Meetings Online
Search vendor "Cisco" for product "Webex Meetings Online"
 < 39.11.5
Search vendor "Cisco" for product "Webex Meetings Online" and version " < 39.11.5"
-
Affected
Cisco
Search vendor "Cisco"
 Webex Meetings Online
Search vendor "Cisco" for product "Webex Meetings Online"
 < 40.1.3
Search vendor "Cisco" for product "Webex Meetings Online" and version " < 40.1.3"
-
Affected