CVE-2021-30480

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Zoom Chat through 2021-04-09 on Windows and macOS allows certain remote authenticated attackers to execute arbitrary code without user interaction. An attacker must be within the same organization, or an external party who has been accepted as a contact. NOTE: this is specific to the Zoom Chat software, which is different from the chat feature of the Zoom Meetings and Zoom Video Webinars software.

Zoom Chat versión hasta el 09-04-2021 en Windows y macOS, permite a determinados atacantes autenticados remotamente ejecutar código arbitrario sin la interacción del usuario. Un atacante debe pertenecer a la misma organización o una parte externa que haya sido aceptada como contacto. NOTA: esto es específico del software Zoom Chat, que es diferente de la funcionalidad de chat del software Zoom Meetings y Zoom Video Webinars

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-09 CVE Reserved
2021-04-09 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-09-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (9)

URL	Tag	Source
https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/04/zoom-zero-day-discovery-makes-calls-safer-hackers-200000-richer	Third Party Advisory
https://twitter.com/thezdi/status/1379855435730149378	Third Party Advisory
https://twitter.com/thezdi/status/1379859851061395459	Third Party Advisory
https://www.securityweek.com/200000-awarded-zero-click-zoom-exploit-pwn2own	Media Coverage
https://www.zdnet.com/article/critical-zoom-vulnerability-triggers-remote-code-execution-without-user-input	Media Coverage
https://www.zerodayinitiative.com/advisories/ZDI-21-971	Third Party Advisory

URL	Date	SRC
https://sector7.computest.nl/post/2021-08-zoom	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://explore.zoom.us/en/trust/security/security-bulletin	2021-09-21
https://zoom.us/feature/messaging	2021-09-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zoom Search vendor "Zoom"	Chat Search vendor "Zoom" for product "Chat"	<= 2021-04-09 Search vendor "Zoom" for product "Chat" and version " <= 2021-04-09"	-	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Zoom Search vendor "Zoom"	Chat Search vendor "Zoom" for product "Chat"	<= 2021-04-09 Search vendor "Zoom" for product "Chat" and version " <= 2021-04-09"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe