Detections
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Mattermost Server < 7.8.10 / 8.0.x < 8.0.2 / 8.1.0 Multiple Vulnerabilities (MMSA-2023-00222) (MMSA-2023-00224) (MMSA-2023-00230)

medium Nessus Plugin ID 182589

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Synopsis

A web application running on the remote server is affected by multiple vulnerabilities.

Description

The version of Mattermost Server running on the remote host is prior to 7.8.10, 8.0.x prior to 8.0.2, or 8.1.0. It is, therefore, affected by multiple vulnerabilities:

 - Mattermost fails to properly check permissions when retrieving a post allowing for a System Role with the permission to manage channels to read the posts of a DM conversation. (CVE-2023-5193)

 - Mattermost fails to properly validate the permissions when soft deleting a team allowing a team member to soft delete other teams that they are not part of. (CVE-2023-5195)

 - Mattermost fails to enforce character limits in all possible notification props allowing an attacker to send a really long value for a notification_prop resulting in the server consuming an abnormal quantity of computing resources and possibly becoming temporarily unavailable for its users. (CVE-2023-5196)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Mattermost Server version 7.8.10, 8.0.2, 8.1.1, or later.

See Also

https://mattermost.com/security-updates/

Plugin Details

Severity: Medium

ID: 182589

File Name: mattermost_server_mmsa-2023-00230.nasl

Version: 1.2

Type: remote

Family: CGI abuses

Published: 10/5/2023

Updated: 11/9/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P

CVSS Score Source: CVE-2023-5195

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mattermost:mattermost_server

Required KB Items: installed_sw/Mattermost Server

Exploit Ease: No known exploits are available

Patch Publication Date: 9/1/2023

Vulnerability Publication Date: 9/1/2023

Reference Information

CVE: CVE-2023-5193, CVE-2023-5195, CVE-2023-5196

IAVA: 2023-A-0519-S