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CVE-2022-28749— Insufficient Authorization Check During Meeting Join

Quick assessment

Affected
Zoom Video Communications Inc On-Premise Meeting Connectors
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.

Zooms On-Premise Meeting Connector MMR是美国Zoom公司的一种视频会议连接控制器。 Zooms On-Premise Meeting Connector MMR 4.8.113.20220526之前的版本存在安全漏洞，该漏洞源于无法正确检查 Zoom 会议与会者的权限，攻击者利用该漏洞可以在未经主持人同意的情况下加入会议。

CVSS 6.5 · Medium EPSS 0.58% · P46

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services
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I. Basic Information for CVE-2022-28749

Vulnerability Information
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Vulnerability Title
Insufficient Authorization Check During Meeting Join
Source: CVE Program / CVE List V5
Vulnerability Description
Zooms On-Premise Meeting Connector MMR before version 4.8.113.20220526 fails to properly check the permissions of a Zoom meeting attendee. As a result, a threat actor in the Zooms waiting room can join the meeting without the consent of the host.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Zooms On-Premise Meeting Connector MMR 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zooms On-Premise Meeting Connector MMR是美国Zoom公司的一种视频会议连接控制器。 Zooms On-Premise Meeting Connector MMR 4.8.113.20220526之前的版本存在安全漏洞，该漏洞源于无法正确检查 Zoom 会议与会者的权限，攻击者利用该漏洞可以在未经主持人同意的情况下加入会议。
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 On-Premise Meeting Connectors unspecified ~ 4.8.113.20220526 -

II. Public POCs for CVE-2022-28749

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III. Intelligence Information for CVE-2022-28749

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Other References for CVE-2022-28749 (1)

IV. Related Vulnerabilities

Same vendor: Zoom Video Communications Inc

V. Comments for CVE-2022-28749

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