CVE-2021-34425

Server Side Request Forgery in Zoom Client for Meetings chat

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Zoom Client for Meetings before version 5.7.3 (for Android, iOS, Linux, macOS, and Windows) contain a server side request forgery vulnerability in the chat\'s "link preview" functionality. In versions prior to 5.7.3, if a user were to enable the chat\'s "link preview" feature, a malicious actor could trick the user into potentially sending arbitrary HTTP GET requests to URLs that the actor cannot reach directly.

Zoom Client for Meetings anterior a la versión 5.7.3 (para Android, iOS, Linux, macOS y Windows) contiene una vulnerabilidad de falsificación de solicitudes del lado del servidor en la funcionalidad de "vista previa de enlaces" del chat. En las versiones anteriores a la 5.7.3, si un usuario habilitaba la función de "vista previa de enlaces" del chat, un actor malicioso podía engañar al usuario para que enviara solicitudes HTTP GET arbitrarias a URLs a las que el actor no podía acceder directamente.

*Credits: Johnny Yu of Walmart Global Tech

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-06-09 CVE Reserved
2021-12-14 CVE Published
2024-08-29 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-918: Server-Side Request Forgery (SSRF)

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://explore.zoom.us/en/trust/security/security-bulletin	2022-04-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zoom Search vendor "Zoom"	Meetings Search vendor "Zoom" for product "Meetings"	< 5.7.3 Search vendor "Zoom" for product "Meetings" and version " < 5.7.3"	-	Affected	in	Apple Search vendor "Apple"	Iphone Os Search vendor "Apple" for product "Iphone Os"	-	-	Safe
Zoom Search vendor "Zoom"	Meetings Search vendor "Zoom" for product "Meetings"	< 5.7.3 Search vendor "Zoom" for product "Meetings" and version " < 5.7.3"	-	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Zoom Search vendor "Zoom"	Meetings Search vendor "Zoom" for product "Meetings"	< 5.7.3 Search vendor "Zoom" for product "Meetings" and version " < 5.7.3"	-	Affected	in	Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	-	-	Safe
Zoom Search vendor "Zoom"	Meetings Search vendor "Zoom" for product "Meetings"	< 5.7.3 Search vendor "Zoom" for product "Meetings" and version " < 5.7.3"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Zoom Search vendor "Zoom"	Meetings Search vendor "Zoom" for product "Meetings"	< 5.7.3 Search vendor "Zoom" for product "Meetings" and version " < 5.7.3"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe