6.1
MEDIUM
CVE-2021-40906
CheckMK Raw Edition Unauthenticated Reflected Cross-Site Scripting
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.

INFO

Published Date :

March 25, 2022, 11:15 p.m.

Last Modified :

July 23, 2024, 7:37 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-40906 has a 5 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-40906 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Tribe29 checkmk
1 Checkmk checkmk
: Total Affected Vendor : 2 | Products : 2
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-40906.

URL Resource
http://checkmk.com Product
https://github.com/Edgarloyola/CVE-2021-40906 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
NaInSec/CVE-PoC-in-GitHub

All CVE - PoC in GitHub

poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate

Updated: 2 months, 3 weeks ago
5 stars 2 fork 2 watcher
Born at : March 22, 2024, 3:58 p.m. This repo has been linked 928 different CVEs too.
Profile Photo
zecool/cve

None

Updated: 8 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : March 11, 2024, 1:21 p.m. This repo has been linked 930 different CVEs too.
Profile Photo
WhooAmii/POC_to_review

None

Updated: 9 months ago
2 stars 2 fork 2 watcher
Born at : Nov. 25, 2022, 5:43 p.m. This repo has been linked 930 different CVEs too.
Profile Photo
soosmile/POC

None

Updated: 4 months, 3 weeks ago
8 stars 1 fork 1 watcher
Born at : June 21, 2022, 7:45 a.m. This repo has been linked 943 different CVEs too.
Profile Photo
Edgarloyola/CVE-2021-40906

None

Updated: 2 years, 10 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 12, 2021, 9:30 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-40906 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-40906 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p2:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p2:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p1:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p1:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:b5:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:b5:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:b9:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:b9:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p19:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p19:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p20:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p20:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p25:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p25:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:*:*:*:*:*:*:*:* versions from (including) 1.5.0 from (excluding) 1.6.0 OR *cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* versions from (including) 1.5.0 from (excluding) 1.6.0
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p6:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p6:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p7:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p7:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p8:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p8:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p9:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p9:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p14:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p14:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p15:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p15:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p16:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p16:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:-:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:-:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:b1:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:b1:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:b10:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:b10:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:b12:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:b12:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:b3:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:b3:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:b4:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:b4:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p21:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p21:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p22:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p22:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p23:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p23:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p24:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p24:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p5:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p5:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p10:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p10:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p11:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p11:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p12:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p12:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p13:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p13:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p4:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p4:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:1.6.0:p3:*:*:*:*:*:* OR *cpe:2.3:a:checkmk:checkmk:1.6.0:p3:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 04, 2022

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type http://checkmk.com No Types Assigned http://checkmk.com Product
    Changed Reference Type https://github.com/Edgarloyola/CVE-2021-40906 No Types Assigned https://github.com/Edgarloyola/CVE-2021-40906 Third Party Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:tribe29:checkmk:*:*:*:*:*:*:*:* versions from (including) 1.5.0 up to (excluding) 1.6.0 *cpe:2.3:a:tribe29:checkmk:1.6.0:-:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:b1:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:b10:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:b12:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:b3:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:b4:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:b5:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:b9:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p1:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p10:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p11:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p12:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p13:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p14:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p15:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p16:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p19:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p2:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p20:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p21:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p22:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p23:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p24:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p25:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p3:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p4:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p5:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p6:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p7:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p8:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0:p9:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0b10:*:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0b11:*:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0p10:*:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0p17:*:*:*:*:*:*:* *cpe:2.3:a:tribe29:checkmk:1.6.0p18:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-40906 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-40906 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} 0.00%

score

0.27694

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: