BigBlueButton up to 2.4-rc-5 permission

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in BigBlueButton up to 2.4-rc-5 and classified as critical. Impacted is an unknown function. Executing a manipulation can lead to permission. This vulnerability appears as CVE-2022-41961. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in BigBlueButton up to 2.4-rc-5 and classified as critical. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a permission vulnerability. The CWE definition for the vulnerability is CWE-275. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds.

The weakness was presented 12/16/2022 as GHSA-wxjp-h88g-7fqg. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-41961 since 09/30/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1222.

Upgrading to version 2.4-rc-6 or 2.5-alpha-1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BigBlueButton 2.4-rc-6/2.5-alpha-1

Timelineinfo

09/30/2022 🔍
12/16/2022 +77 days 🔍
12/16/2022 +0 days 🔍
01/13/2023 +28 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-wxjp-h88g-7fqg
Status: Confirmed

CVE: CVE-2022-41961 (🔍)
GCVE (CVE): GCVE-0-2022-41961
GCVE (VulDB): GCVE-100-215968

Entryinfo

Created: 12/16/2022 17:48
Updated: 01/13/2023 14:05
Changes: 12/16/2022 17:48 (40), 01/13/2023 14:05 (12)
Complete: 🔍
Cache ID: 216::103

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