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

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CVE-2021-40906

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
25/03/2022
Last modified:
23/07/2024

Description

CheckMK Raw Edition software (versions 1.5.0 to 1.6.0) does not sanitise the input of a web service parameter that is in an unauthenticated zone. This Reflected XSS allows an attacker to open a backdoor on the device with HTML content and interpreted by the browser (such as JavaScript or other client-side scripts) or to steal the session cookies of a user who has previously authenticated via a man in the middle. Successful exploitation requires access to the web service resource without authentication.

Impact

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

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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

Base Score 3.x
6.10
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:M/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

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

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* 1.5.0 (including) 1.6.0 (excluding)
cpe:2.3:a:checkmk:checkmk:1.6.0:-:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b10:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b12:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b3:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b4:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b5:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b9:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p10:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p11:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p12:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p13:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p14:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools