Mattermost Server 7.1.0 DoS (MMSA-2022-00115)

medium Nessus Plugin ID 165624

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Synopsis

A web application running on the remote server is affected by a denial of service vulnerability.

Description

The version of Mattermost Server running on the remote host is 7.1.0. It is, therefore, affected by a denial of service (DoS) vulnerability. An authenticated, remote attacker can upload a specially crafted GIF file when creating a post which causes resource exhaustion on the host.

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 7.2.0 or later.

See Also

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

http://https://hackerone.com/reports/1620170

Plugin Details

Severity: Medium

ID: 165624

File Name: mattermost_server_mmsa-2022-00115.nasl

Version: 1.4

Type: remote

Family: CGI abuses

Published: 10/3/2022

Updated: 12/2/2022

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2022-3257

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

Temporal Vector: 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: 8/16/2022

Vulnerability Publication Date: 9/21/2022

Reference Information

CVE: CVE-2022-3257

IAVA: 2022-A-0392-S