// For flags

CVE-2020-3131

Cisco Webex Teams Adaptive Cards Denial of Service Vulnerability

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the Cisco Webex Teams client for Windows could allow an authenticated, remote attacker to cause the client to crash, resulting in a denial of service (DoS) condition. The attacker needs a valid developer account to exploit this vulnerability. The vulnerability is due to insufficient input validation when processing received adaptive cards. The attacker could exploit this vulnerability by sending an adaptive card with malicious content to an existing user of the Cisco Webex Teams client for Windows. A successful exploit could allow the attacker to cause the targeted user's client to crash continuously. This vulnerability was introduced in Cisco Webex Teams client for Windows Release 3.0.13131.

Una vulnerabilidad en el cliente Cisco Webex Teams para Windows podría permitir que un atacante remoto autenticado haga que el cliente se bloquee, dando como resultado una condición de denegación de servicio (DoS). El atacante necesita una cuenta de desarrollador válida para aprovechar esta vulnerabilidad. La vulnerabilidad se debe a una validación de entrada insuficiente cuando se procesan tarjetas adaptativas recibidas. El atacante podría aprovechar esta vulnerabilidad enviando una tarjeta adaptable con contenido malicioso a un usuario existente del cliente Cisco Webex Teams para Windows. Una explotación con éxito podría permitir al atacante provocar que el cliente del usuario objetivo se bloquee continuamente. Esta vulnerabilidad se introdujo en el cliente Cisco Webex Teams para Windows Release 3.0.13131.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-01-26 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
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 Teams
Search vendor "Cisco" for product "Webex Teams"
 <= 3.0.13131
Search vendor "Cisco" for product "Webex Teams" and version " <= 3.0.13131"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows
Search vendor "Microsoft" for product "Windows"
--
Safe