CVE-2021-40905

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

The web management console of CheckMK Enterprise Edition (versions 1.5.0 to 2.0.0p9) does not properly sanitise the uploading of ".mkp" files, which are Extension Packages, making remote code execution possible. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session of a user with administrator role. NOTE: the vendor states that this is the intended behavior: admins are supposed to be able to execute code in this manner

** EN DISTPUTA ** La consola de administración web de CheckMK Enterprise Edition (versiones 1.5.0 a 2.0.0p9) no sanea correctamente la carga de archivos ".mkp", que son Paquetes de Extensión, haciendo posible una ejecución de código remota. Una explotación con éxito requiere el acceso a la interfaz de administración web, ya sea con credenciales válidas o con una sesión secuestrada de un usuario con rol de administrador. NOTA: el proveedor afirma que este es el comportamiento previsto: se supone que los administradores pueden ejecutar código de esta manera

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-09-13 CVE Reserved
2022-03-25 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-10-29 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (2)

URL	Tag	Source
http://checkmk.com	Product

URL	Date	SRC
https://github.com/Edgarloyola/CVE-2021-40905	2024-08-04

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
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				>= 1.5.0 < 2.0.0 Search vendor "Tribe29" for product "Checkmk" and version " >= 1.5.0 < 2.0.0"		-		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		-		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		b1		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		b2		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		b3		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		b4		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		b5		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		b6		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		b7		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		b8		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		i1		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p1		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p10		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p11		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p12		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p13		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p14		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p15		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p16		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p17		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p2		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p3		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p4		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p5		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p6		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p7		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p8		Affected
Tribe29 Search vendor "Tribe29"		Checkmk Search vendor "Tribe29" for product "Checkmk"				2.0.0 Search vendor "Tribe29" for product "Checkmk" and version "2.0.0"		p9		Affected