CVE-2024-38518— bbb-web API additional parameters considered
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 2.7.8之前版本存在安全漏洞。攻击者利用该漏洞先使用查看者的身份访问创建的链接后以主持人的身份加入会议。
Possible ATT&CK Techniques 1 AI
T1136.001 · Local Account
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I. Basic Information for CVE-2024-38518
Vulnerability Information
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Vulnerability Title
bbb-web API additional parameters considered
Source: CVE Program / CVE List V5
Vulnerability Description
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be "role=moderator", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
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 2.7.8之前版本存在安全漏洞。攻击者利用该漏洞先使用查看者的身份访问创建的链接后以主持人的身份加入会议。
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 |
|---|---|---|---|---|
| bigbluebutton | bigbluebutton | < 2.6.18 | - |
|
II. Public POCs for CVE-2024-38518
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2024-38518 (3)
-
https://github.com/bigbluebutton/bigbluebutton/pull/20279 x_refsource_MISC
Vendor Advisories for CVE-2024-38518 (1)
IV. Related Vulnerabilities
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Same weakness: CWE-284
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V. Comments for CVE-2024-38518
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