BigBlueButton up to 2.4.2 data authenticity

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in BigBlueButton up to 2.4.2 and classified as problematic. This issue affects some unknown processing. Such manipulation leads to data authenticity. This vulnerability is uniquely identified as CVE-2022-41960. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in BigBlueButton up to 2.4.2. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a data authenticity vulnerability. Using CWE to declare the problem leads to CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. Impacted is availability. CVE summarizes:

BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to `validateAuthToken` using a victim's userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim's client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds.

The weakness was disclosed 12/16/2022 as GHSA-rgjp-3r74-g4cm. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-41960 since 09/30/2022. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.4.3 or 2.5-alpha-1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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: Data authenticity
CWE: CWE-345
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 2.4.3/2.5-alpha-1

Timelineinfo

09/30/2022 🔍
12/16/2022 +77 days 🔍
12/16/2022 +0 days 🔍
12/16/2022 +0 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-rgjp-3r74-g4cm
Status: Confirmed

CVE: CVE-2022-41960 (🔍)
GCVE (CVE): GCVE-0-2022-41960
GCVE (VulDB): GCVE-100-215912

Entryinfo

Created: 12/16/2022 07:54
Changes: 12/16/2022 07:54 (49)
Complete: 🔍
Cache ID: 216::103

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