CVE-2020-11443

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Zoom IT installer for Windows (ZoomInstallerFull.msi) prior to version 4.6.10 deletes files located in %APPDATA%\Zoom before installing an updated version of the client. Standard users are able to write to this directory, and can write links to other directories on the machine. As the installer runs with SYSTEM privileges and follows these links, a user can cause the installer to delete files that otherwise cannot be deleted by the user.

El instalador it zoom para windows, (ZoomInstallerFull.msi) anterior a la versión 4.6.10 elimina ficheros localizados en %APPDATA%\Zoom antes de instalar una actualización de la versión del cliente. Los usuarios comunes pueden escribir en el directorio, y puede escribir links a otros directorios en la máquina. Así el instalador dirige con privilegios SYSTEM y sigue estos links, un usuario puede causar que al instalador que elimine los ficheros que de otra manera no pueden ser eliminados por nosotros.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-04-01 CVE Reserved
2020-05-04 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-59: Improper Link Resolution Before File Access ('Link Following')
CWE-732: Incorrect Permission Assignment for Critical Resource

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.zoom.us/hc/en-us/articles/201361953-New-Updates-for-Windows	2021-07-21
https://support.zoom.us/hc/en-us/articles/360043036451	2021-07-21
https://support.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443	2021-07-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zoom Search vendor "Zoom"		It Installer Search vendor "Zoom" for product "It Installer"				< 4.6.10 Search vendor "Zoom" for product "It Installer" and version " < 4.6.10"		windows		Affected