CVE-2024-1402

Denial of service in mattermost mobile apps and server via emoji reactions

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post.

Mattermost no verifica si existe una reacción de emoji personalizada al enviarla a una publicación y no limita la cantidad de emojis personalizados que se pueden agregar en una publicación, lo que permite que un atacante que envía una gran cantidad de emojis personalizados inexistentes en una publicación falle la aplicación móvil de un usuario que ve la publicación.

*Credits: Gian Klug (coderion)

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

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

2024-02-09 CVE Reserved
2024-02-09 CVE Published
2024-02-16 EPSS Updated
2024-08-01 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://mattermost.com/security-updates	2024-05-30

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 Server Search vendor "Mattermost" for product "Mattermost Server"				<= 8.1.7 Search vendor "Mattermost" for product "Mattermost Server" and version " <= 8.1.7"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				>= 9.0.0 <= 9.1.4 Search vendor "Mattermost" for product "Mattermost Server" and version " >= 9.0.0 <= 9.1.4"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				>= 9.2.0 <= 9.2.3 Search vendor "Mattermost" for product "Mattermost Server" and version " >= 9.2.0 <= 9.2.3"		-		Affected