CVE-2019-16001

Cisco Webex Teams for Windows DLL Hijacking Vulnerability

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A vulnerability in the loading mechanism of specific dynamic link libraries in Cisco Webex Teams for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of the resources loaded by the application at run time. An attacker could exploit this vulnerability by crafting a malicious DLL file and placing it in a specific location on the targeted system. The malicious DLL file would execute when the vulnerable application is launched. A successful exploit could allow the attacker to execute arbitrary code on the target machine with the privileges of another user account.

Una vulnerabilidad en el mecanismo de carga de bibliotecas de enlaces dinámicos específicos en Cisco Webex Teams para Windows, podría permitir a un atacante local autenticado realizar un ataque de secuestro de DLL. Para explotar esta vulnerabilidad, el atacante debería tener credenciales válidas en el sistema Windows. La vulnerabilidad es debido a una comprobación insuficiente de los recursos cargados por parte de la aplicación durante el tiempo de ejecución. Un atacante podría explotar esta vulnerabilidad al crear un archivo DLL malicioso y colocándolo en una ubicación específica sobre el sistema destino. El archivo DLL malicioso se ejecutará cuando la aplicación vulnerable sea iniciada. Una explotación con éxito podría permitir al atacante ejecutar código arbitrario sobre la máquina de destino con los privilegios de otra cuenta de usuario.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2019-09-06 CVE Reserved
2019-11-26 CVE Published
2023-03-08 EPSS Updated
2024-11-21 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-427: Uncontrolled Search Path Element

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-webex-teams-dll	2019-12-11

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 Search vendor "Cisco" for product "Webex Meetings"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Cisco Search vendor "Cisco"	Webex Teams Search vendor "Cisco" for product "Webex Teams"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe