Mattermost up to 9.5.8/9.9.2/9.10.1 Channel authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Mattermost up to 9.5.8/9.9.2/9.10.1. The affected element is an unknown function of the component Channel Handler. Such manipulation leads to authorization. This vulnerability is referenced as CVE-2024-9155. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Mattermost up to 9.5.8/9.9.2/9.10.1. Affected by this issue is an unknown code block of the component Channel Handler. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. Impacted is confidentiality. CVE summarizes:

Mattermost versions 9.10.x <= 9.10.1, 9.9.x <= 9.9.2, 9.5.x <= 9.5.8 fail to limit access to channels files that have not been linked to a post which allows an attacker to view them in channels that they are a member of.

The weakness was published by Lorenzo Gallegos. The advisory is available at mattermost.com. This vulnerability is handled as CVE-2024-9155 since 09/24/2024. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 209297 (Mattermost Server 9.5.x < 9.5.9 / 9.9.x < 9.9.3 / 9.10.x < 9.10.2 (MMSA-2024-00362)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.5.9, 9.9.3, 9.10.2 or 9.11.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209297). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

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 (Mattermost): 🔍

CVSSv2info

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

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / 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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Nessus ID: 209297
Nessus Name: Mattermost Server 9.5.x < 9.5.9 / 9.9.x < 9.9.3 / 9.10.x < 9.10.2 (MMSA-2024-00362)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost 9.5.9/9.9.3/9.10.2/9.11.0

Timelineinfo

09/24/2024 🔍
09/26/2024 +2 days 🔍
09/26/2024 +0 days 🔍
10/19/2024 +23 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: Lorenzo Gallegos
Status: Confirmed

CVE: CVE-2024-9155 (🔍)
GCVE (CVE): GCVE-0-2024-9155
GCVE (VulDB): GCVE-100-278570

Entryinfo

Created: 09/26/2024 17:58
Updated: 10/19/2024 04:01
Changes: 09/26/2024 17:58 (63), 10/01/2024 00:33 (1), 10/19/2024 04:01 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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