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CVE-2022-41962— BigBlueButton contains Incorrect Authorization for setting emoji status

Quick assessment

Affected
bigbluebutton bigbluebutton
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.

BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton 2.4-rc-6 和 2.5-alpha-1之前版本存在安全漏洞，该漏洞源于包含设置表情符号状态的错误授权，攻击者利用该漏洞可以使用清除状态功能为其他用户设置任何表情符号状态。

CVSS 2.7 · Low EPSS 0.69% · P51

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2022-41962

Vulnerability Information
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Vulnerability Title
BigBlueButton contains Incorrect Authorization for setting emoji status
Source: CVE Program / CVE List V5
Vulnerability Description
BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6, and 2.5-alpha-1 contain Incorrect Authorization for setting emoji status. A user with moderator rights can use the clear status feature to set any emoji status for other users. Moderators should only be able to set none as the status of other users. This issue is patched in 2.4-rc-6 and 2.5-alpha-1There are no workarounds.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
BigBlueButton 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton 2.4-rc-6 和 2.5-alpha-1之前版本存在安全漏洞，该漏洞源于包含设置表情符号状态的错误授权，攻击者利用该漏洞可以使用清除状态功能为其他用户设置任何表情符号状态。
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
bigbluebutton bigbluebutton <2.4-rc-6 -

II. Public POCs for CVE-2022-41962

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III. Intelligence Information for CVE-2022-41962

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Vendor Advisories for CVE-2022-41962 (1)

Other References for CVE-2022-41962 (2)

Same Patch Batch · bigbluebutton · 2022-12-16 · 5 CVEs total

CVE-2022-41964 5.7 MEDIUM BigBlueButton contains Response leaks in anonymous polls
CVE-2022-23490 4.3 MEDIUM Improper access control to polling votes
CVE-2022-41961 4.3 MEDIUM BigBlueButton subject to Ineffective user bans
CVE-2022-41963 2.7 LOW BigBlueButton contains Improper Preservation of Permissions for whiteboard

IV. Related Vulnerabilities

Same product: bigbluebutton
Same vendor: bigbluebutton
Same weakness: CWE-863

V. Comments for CVE-2022-41962

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