CVE-2024-39361

Creating posts with user-defined IDs permitted in CreatePost API

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Mattermost versions 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2 and 9.5.x <= 9.5.5 fail to prevent users from specifying a RemoteId for their posts which allows an attacker to specify both a remoteId and the post ID, resulting in creating a post with a user-defined post ID. This can cause some broken functionality in the channel or thread with user-defined posts

Las versiones de Mattermost 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2 y 9.5.x <= 9.5.5 no evitan que los usuarios especifiquen un RemoteId para sus publicaciones, lo que permite a un atacante especificar ambos. un ID remoto y el ID de la publicación, lo que da como resultado la creación de una publicación con una ID de publicación definida por el usuario. Esto puede causar alguna funcionalidad rota en el canal o hilo con publicaciones definidas por el usuario.

*Credits: Juho Forsén

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-07-01 CVE Reserved
2024-07-03 CVE Published
2024-07-06 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://mattermost.com/security-updates	2024-07-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				>= 9.5.0 < 9.5.6 Search vendor "Mattermost" for product "Mattermost" and version " >= 9.5.0 < 9.5.6"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				>= 9.6.0 < 9.6.3 Search vendor "Mattermost" for product "Mattermost" and version " >= 9.6.0 < 9.6.3"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				>= 9.7.0 < 9.7.4 Search vendor "Mattermost" for product "Mattermost" and version " >= 9.7.0 < 9.7.4"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				>= 9.8.0 < 9.8.1 Search vendor "Mattermost" for product "Mattermost" and version " >= 9.8.0 < 9.8.1"		-		Affected