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CVE-2021-34425— Server Side Request Forgery in Zoom Client for Meetings chat

Quick assessment

Affected
Zoom Video Communications Inc Zoom Client for Meetings for Android
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ZOOM Client是美国ZOOM公司的一款支持多种平台的视频会议客户端应用程序。 Zoom Client for Meetings 5.7.3 版之前存在代码问题漏洞，如果用户要启用聊天的链接预览功能，恶意行为者可能会诱使用户向其无法直接访问的 URL 发送任意 HTTP GET 请求。

CVSS 4.7 · Medium EPSS 0.81% · P55

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-34425

Vulnerability Information
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Vulnerability Title
Server Side Request Forgery in Zoom Client for Meetings chat
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
ZOOM Client 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZOOM Client是美国ZOOM公司的一款支持多种平台的视频会议客户端应用程序。 Zoom Client for Meetings 5.7.3 版之前存在代码问题漏洞，如果用户要启用聊天的链接预览功能，恶意行为者可能会诱使用户向其无法直接访问的 URL 发送任意 HTTP GET 请求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zoom Video Communications Inc Zoom Client for Meetings for Android unspecified ~ 5.7.3 -
Zoom Video Communications Inc Zoom Client for Meetings for iOS unspecified ~ 5.7.3 -
Zoom Video Communications Inc Zoom Client for Meetings for Linux unspecified ~ 5.7.3 -
Zoom Video Communications Inc Zoom Client for Meetings for macOS unspecified ~ 5.7.3 -
Zoom Video Communications Inc Zoom Client for Meetings for Windows unspecified ~ 5.7.3 -

II. Public POCs for CVE-2021-34425

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III. Intelligence Information for CVE-2021-34425

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Other References for CVE-2021-34425 (1)

IV. Related Vulnerabilities

Same product: Zoom Client for Meetings for Android
Same vendor: Zoom Video Communications Inc

V. Comments for CVE-2021-34425

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