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CVE-2022-22787— Insufficient hostname validation during Clusterswitch message in Zoom Client for Meetings

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 5.10.0之前版本存在信任管理问题漏洞，该漏洞源于应用在服务器切换请求期间无法正确验证主机名。攻击者利用该漏洞可以使客户端连接恶意服务器。

CVSS 5.9 · Medium EPSS 3.63% · P89
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I. Basic Information for CVE-2022-22787

Vulnerability Information
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Vulnerability Title
Insufficient hostname validation during Clusterswitch message in Zoom Client for Meetings
Source: CVE Program / CVE List V5
Vulnerability Description
The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 fails to properly validate the hostname during a server switch request. This issue could be used in a more sophisticated attack to trick an unsuspecting users client to connect to a malicious server when attempting to use Zoom services.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Zoom Client 信任管理问题漏洞
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 5.10.0之前版本存在信任管理问题漏洞，该漏洞源于应用在服务器切换请求期间无法正确验证主机名。攻击者利用该漏洞可以使客户端连接恶意服务器。
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 ~ 5.10.0 -
Zoom Video Communications Inc Zoom Client for Meetings for iOS unspecified ~ 5.10.0 -
Zoom Video Communications Inc Zoom Client for Meetings for Linux unspecified ~ 5.10.0 -
Zoom Video Communications Inc Zoom Client for Meetings for MacOS unspecified ~ 5.10.0 -
Zoom Video Communications Inc Zoom Client for Meetings for Windows unspecified ~ 5.10.0 -

II. Public POCs for CVE-2022-22787

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III. Intelligence Information for CVE-2022-22787

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Exploits & Public PoCs for CVE-2022-22787 (1)

Other References for CVE-2022-22787 (1)

Same Patch Batch · Zoom Video Communications Inc · 2022-05-18 · 4 CVEs total

CVE-2022-22784 8.1 HIGH Improper XML Parsing in Zoom Client for Meetings
CVE-2022-22786 7.5 HIGH Update package downgrade in Zoom Client for Meetings for Windows
CVE-2022-22785 5.9 MEDIUM Improperly constrained session cookies in Zoom Client for Meetings

IV. Related Vulnerabilities

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

V. Comments for CVE-2022-22787

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