CVE-2024-24988

Excessive resource consumption when sending long emoji names in user custom status

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 properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server.

Mattermost no logra validar adecuadamente la longitud del valor emoji en el estado de usuario personalizado, lo que permite a un atacante enviar varias veces una cadena muy larga como valor emoji, lo que provoca un alto consumo de recursos y posiblemente fallar el servidor.

*Credits: Gian Klug (coderion)

CVSS Scores

Mattermost, Inc.v3.1 4.3

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

2024-02-26 CVE Reserved
2024-02-29 CVE Published
2024-03-01 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
https://mattermost.com/security-updates

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

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"				<= 9.2.4 Search vendor "Mattermost" for product "Mattermost" and version " <= 9.2.4"		en		Affected
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				<= 8.1.8 Search vendor "Mattermost" for product "Mattermost" and version " <= 8.1.8"		en		Affected
Mattermost Search vendor "Mattermost"		Mattermost Search vendor "Mattermost" for product "Mattermost"				<= 9.3.0 Search vendor "Mattermost" for product "Mattermost" and version " <= 9.3.0"		en		Affected