BigBlueButton up to 2.2.6 service.js lockSettingsProps.disablePrivateChat access control

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in BigBlueButton up to 2.2.6. This issue affects the function lockSettingsProps.disablePrivateChat of the file bigbluebutton-html5/imports/ui/components/chat/service.js. Such manipulation leads to access control. This vulnerability is traded as CVE-2020-27601. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in BigBlueButton up to 2.2.6. Affected by this issue is the function lockSettingsProps.disablePrivateChat of the file bigbluebutton-html5/imports/ui/components/chat/service.js. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In BigBlueButton before 2.2.7, lockSettingsProps.disablePrivateChat does not apply to already opened chats. This occurs in bigbluebutton-html5/imports/ui/components/chat/service.js.

The weakness was shared 09/29/2022 as 7dcdfb191373684bafa7b11cdd0128c9869040a1. The advisory is available at github.com. This vulnerability is handled as CVE-2020-27601 since 10/21/2020. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 2.2.7 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 7dcdfb191373684bafa7b11cdd0128c9869040a1 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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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: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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 2.2.7
Patch: 7dcdfb191373684bafa7b11cdd0128c9869040a1

Timelineinfo

10/21/2020 🔍
09/29/2022 +708 days 🔍
09/29/2022 +0 days 🔍
09/29/2022 +0 days 🔍

Sourcesinfo

Product: github.com

Advisory: 7dcdfb191373684bafa7b11cdd0128c9869040a1
Status: Confirmed

CVE: CVE-2020-27601 (🔍)
GCVE (CVE): GCVE-0-2020-27601
GCVE (VulDB): GCVE-100-209774

Entryinfo

Created: 09/29/2022 09:06
Changes: 09/29/2022 09:06 (44)
Complete: 🔍
Cache ID: 216::103

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