Vulnerability Details : CVE-2021-40905
Potential exploit
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
Vulnerability category: Execute code
Products affected by CVE-2021-40905
- cpe:2.3:a:tribe29:checkmk:*:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p14:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p15:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p16:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p17:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p2:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p3:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p4:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p5:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p6:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p7:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p8:*:*:*:*:*:*
- cpe:2.3:a:checkmk:checkmk:2.0.0:p9:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-40905
2.43%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-40905
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-08-01 |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-40905
-
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-40905
-
http://checkmk.com
Infrastructure & Application Monitoring with CheckmkProduct
-
https://github.com/Edgarloyola/CVE-2021-40905
GitHub - Edgarloyola/CVE-2021-40905Exploit;Third Party Advisory
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