Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-40905

Severity CVSS v4.0:
Pending analysis
Type:
CWE-434 Unrestricted Upload of File with Dangerous Type
Publication date:
25/03/2022
Last modified:
04/08/2024

Description

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

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:checkmk:checkmk:2.0.0:-:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:b1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:b2:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:b3:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:b4:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:b5:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:b6:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:b7:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:b8:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:i1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:p1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:p10:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:p11:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:p12:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:2.0.0:p13:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools