CVE-2022-0903

Stack overflow in SAML login in Mattermost

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A call stack overflow bug in the SAML login feature in Mattermost server in versions up to and including 6.3.2 allows an attacker to crash the server via submitting a maliciously crafted POST body.

Un bug de desbordamiento de pila de llamadas en la función de inicio de sesión SAML en el servidor Mattermost en versiones hasta la 6.3.2 incluyéndola, permite a un atacante bloquear el servidor mediante el envío de un cuerpo POST malintencionadamente diseñado

*Credits: Thanks to Juho Nurminen for contributing to this improvement under the Mattermost responsible disclosure policy.

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-03-09 CVE Reserved
2022-03-09 CVE Published
2023-09-30 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://mattermost.com/security-updates	2022-03-15

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"				< 5.37.8 Search vendor "Mattermost" for product "Mattermost Server" and version " < 5.37.8"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				>= 6.0.0 < 6.1.3 Search vendor "Mattermost" for product "Mattermost Server" and version " >= 6.0.0 < 6.1.3"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				>= 6.2.0 < 6.2.3 Search vendor "Mattermost" for product "Mattermost Server" and version " >= 6.2.0 < 6.2.3"		-		Affected
Mattermost Search vendor "Mattermost"		Mattermost Server Search vendor "Mattermost" for product "Mattermost Server"				>= 6.3.0 < 6.3.3 Search vendor "Mattermost" for product "Mattermost Server" and version " >= 6.3.0 < 6.3.3"		-		Affected