CVE-2023-2020: Unauthorized scheduling of downtimes via REST API
First published: Tue Apr 18 2023(Updated: )
Insufficient permission checks in the REST API in Tribe29 Checkmk <= 2.1.0p27 and <= 2.2.0b4 (beta) allow unauthorized users to schedule downtimes for any host.
Credit: security@checkmk.com security@checkmk.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Tribe29 Checkmk | =2.1.0 | |
| Tribe29 Checkmk | =2.1.0-b1 | |
| Tribe29 Checkmk | =2.1.0-b2 | |
| Tribe29 Checkmk | =2.1.0-b3 | |
| Tribe29 Checkmk | =2.1.0-b4 | |
| Tribe29 Checkmk | =2.1.0-b5 | |
| Tribe29 Checkmk | =2.1.0-b6 | |
| Tribe29 Checkmk | =2.1.0-b7 | |
| Tribe29 Checkmk | =2.1.0-b8 | |
| Tribe29 Checkmk | =2.1.0-b9 | |
| Tribe29 Checkmk | =2.1.0-p1 | |
| Tribe29 Checkmk | =2.1.0-p10 | |
| Tribe29 Checkmk | =2.1.0-p11 | |
| Tribe29 Checkmk | =2.1.0-p12 | |
| Tribe29 Checkmk | =2.1.0-p13 | |
| Tribe29 Checkmk | =2.1.0-p14 | |
| Tribe29 Checkmk | =2.1.0-p15 | |
| Tribe29 Checkmk | =2.1.0-p16 | |
| Tribe29 Checkmk | =2.1.0-p17 | |
| Tribe29 Checkmk | =2.1.0-p18 | |
| Tribe29 Checkmk | =2.1.0-p2 | |
| Tribe29 Checkmk | =2.1.0-p20 | |
| Tribe29 Checkmk | =2.1.0-p21 | |
| Tribe29 Checkmk | =2.1.0-p22 | |
| Tribe29 Checkmk | =2.1.0-p23 | |
| Tribe29 Checkmk | =2.1.0-p24 | |
| Tribe29 Checkmk | =2.1.0-p25 | |
| Tribe29 Checkmk | =2.1.0-p26 | |
| Tribe29 Checkmk | =2.1.0-p27 | |
| Tribe29 Checkmk | =2.1.0-p3 | |
| Tribe29 Checkmk | =2.1.0-p4 | |
| Tribe29 Checkmk | =2.1.0-p5 | |
| Tribe29 Checkmk | =2.1.0-p6 | |
| Tribe29 Checkmk | =2.1.0-p7 | |
| Tribe29 Checkmk | =2.1.0-p8 | |
| Tribe29 Checkmk | =2.1.0-p9 | |
| Tribe29 Checkmk | =2.2.0-b1 | |
| Tribe29 Checkmk | =2.2.0-b2 | |
| Tribe29 Checkmk | =2.2.0-b3 | |
| Tribe29 Checkmk | =2.2.0-b4 | |
| Tribe29 Checkmk | =2.2.0-i1 | |
| Checkmk Checkmk | =2.1.0 | |
| Checkmk Checkmk | =2.1.0-b1 | |
| Checkmk Checkmk | =2.1.0-b2 | |
| Checkmk Checkmk | =2.1.0-b3 | |
| Checkmk Checkmk | =2.1.0-b4 | |
| Checkmk Checkmk | =2.1.0-b5 | |
| Checkmk Checkmk | =2.1.0-b6 | |
| Checkmk Checkmk | =2.1.0-b7 | |
| Checkmk Checkmk | =2.1.0-b8 | |
| Checkmk Checkmk | =2.1.0-b9 | |
| Checkmk Checkmk | =2.1.0-p1 | |
| Checkmk Checkmk | =2.1.0-p10 | |
| Checkmk Checkmk | =2.1.0-p11 | |
| Checkmk Checkmk | =2.1.0-p12 | |
| Checkmk Checkmk | =2.1.0-p13 | |
| Checkmk Checkmk | =2.1.0-p14 | |
| Checkmk Checkmk | =2.1.0-p15 | |
| Checkmk Checkmk | =2.1.0-p16 | |
| Checkmk Checkmk | =2.1.0-p17 | |
| Checkmk Checkmk | =2.1.0-p18 | |
| Checkmk Checkmk | =2.1.0-p2 | |
| Checkmk Checkmk | =2.1.0-p20 | |
| Checkmk Checkmk | =2.1.0-p21 | |
| Checkmk Checkmk | =2.1.0-p22 | |
| Checkmk Checkmk | =2.1.0-p23 | |
| Checkmk Checkmk | =2.1.0-p24 | |
| Checkmk Checkmk | =2.1.0-p25 | |
| Checkmk Checkmk | =2.1.0-p26 | |
| Checkmk Checkmk | =2.1.0-p27 | |
| Checkmk Checkmk | =2.1.0-p3 | |
| Checkmk Checkmk | =2.1.0-p4 | |
| Checkmk Checkmk | =2.1.0-p5 | |
| Checkmk Checkmk | =2.1.0-p6 | |
| Checkmk Checkmk | =2.1.0-p7 | |
| Checkmk Checkmk | =2.1.0-p8 | |
| Checkmk Checkmk | =2.1.0-p9 | |
| Checkmk Checkmk | =2.2.0-b1 | |
| Checkmk Checkmk | =2.2.0-b2 | |
| Checkmk Checkmk | =2.2.0-b3 | |
| Checkmk Checkmk | =2.2.0-b4 | |
| Checkmk Checkmk | =2.2.0-i1 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-2020?
CVE-2023-2020 is a vulnerability in Tribe29 Checkmk versions 2.1.0p27 and 2.2.0b4 that allows unauthorized users to schedule downtimes for any host.
What is the severity of CVE-2023-2020?
The severity of CVE-2023-2020 is medium, with a severity value of 4.3.
How does CVE-2023-2020 affect Tribe29 Checkmk?
CVE-2023-2020 affects Tribe29 Checkmk versions 2.1.0p27 and 2.2.0b4.
How can unauthorized users exploit CVE-2023-2020?
Unauthorized users can exploit CVE-2023-2020 to schedule downtimes for any host using the REST API in Tribe29 Checkmk versions 2.1.0p27 and 2.2.0b4.
Is there a fix for CVE-2023-2020?
Yes, there is a fix for CVE-2023-2020. It is recommended to update Tribe29 Checkmk to a version higher than 2.2.0b4 or 2.1.0p27.
- collector/nvd-index
- agent/weakness
- agent/type
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/author
- agent/references
- agent/description
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/title
- agent/severity
- agent/event
- agent/tags
- agent/first-publish-date
- vendor/tribe29
- canonical/tribe29 checkmk
- version/tribe29 checkmk/2.1.0
- version/tribe29 checkmk/2.1.0-b1
- version/tribe29 checkmk/2.1.0-b2
- version/tribe29 checkmk/2.1.0-b3
- version/tribe29 checkmk/2.1.0-b4
- version/tribe29 checkmk/2.1.0-b5
- version/tribe29 checkmk/2.1.0-b6
- version/tribe29 checkmk/2.1.0-b7
- version/tribe29 checkmk/2.1.0-b8
- version/tribe29 checkmk/2.1.0-b9
- version/tribe29 checkmk/2.1.0-p1
- version/tribe29 checkmk/2.1.0-p10
- version/tribe29 checkmk/2.1.0-p11
- version/tribe29 checkmk/2.1.0-p12
- version/tribe29 checkmk/2.1.0-p13
- version/tribe29 checkmk/2.1.0-p14
- version/tribe29 checkmk/2.1.0-p15
- version/tribe29 checkmk/2.1.0-p16
- version/tribe29 checkmk/2.1.0-p17
- version/tribe29 checkmk/2.1.0-p18
- version/tribe29 checkmk/2.1.0-p2
- version/tribe29 checkmk/2.1.0-p20
- version/tribe29 checkmk/2.1.0-p21
- version/tribe29 checkmk/2.1.0-p22
- version/tribe29 checkmk/2.1.0-p23
- version/tribe29 checkmk/2.1.0-p24
- version/tribe29 checkmk/2.1.0-p25
- version/tribe29 checkmk/2.1.0-p26
- version/tribe29 checkmk/2.1.0-p27
- version/tribe29 checkmk/2.1.0-p3
- version/tribe29 checkmk/2.1.0-p4
- version/tribe29 checkmk/2.1.0-p5
- version/tribe29 checkmk/2.1.0-p6
- version/tribe29 checkmk/2.1.0-p7
- version/tribe29 checkmk/2.1.0-p8
- version/tribe29 checkmk/2.1.0-p9
- version/tribe29 checkmk/2.2.0-b1
- version/tribe29 checkmk/2.2.0-b2
- version/tribe29 checkmk/2.2.0-b3
- version/tribe29 checkmk/2.2.0-b4
- version/tribe29 checkmk/2.2.0-i1
- vendor/checkmk
- canonical/checkmk checkmk
- version/checkmk checkmk/2.1.0
- version/checkmk checkmk/2.1.0-b1
- version/checkmk checkmk/2.1.0-b2
- version/checkmk checkmk/2.1.0-b3
- version/checkmk checkmk/2.1.0-b4
- version/checkmk checkmk/2.1.0-b5
- version/checkmk checkmk/2.1.0-b6
- version/checkmk checkmk/2.1.0-b7
- version/checkmk checkmk/2.1.0-b8
- version/checkmk checkmk/2.1.0-b9
- version/checkmk checkmk/2.1.0-p1
- version/checkmk checkmk/2.1.0-p10
- version/checkmk checkmk/2.1.0-p11
- version/checkmk checkmk/2.1.0-p12
- version/checkmk checkmk/2.1.0-p13
- version/checkmk checkmk/2.1.0-p14
- version/checkmk checkmk/2.1.0-p15
- version/checkmk checkmk/2.1.0-p16
- version/checkmk checkmk/2.1.0-p17
- version/checkmk checkmk/2.1.0-p18
- version/checkmk checkmk/2.1.0-p2
- version/checkmk checkmk/2.1.0-p20
- version/checkmk checkmk/2.1.0-p21
- version/checkmk checkmk/2.1.0-p22
- version/checkmk checkmk/2.1.0-p23
- version/checkmk checkmk/2.1.0-p24
- version/checkmk checkmk/2.1.0-p25
- version/checkmk checkmk/2.1.0-p26
- version/checkmk checkmk/2.1.0-p27
- version/checkmk checkmk/2.1.0-p3
- version/checkmk checkmk/2.1.0-p4
- version/checkmk checkmk/2.1.0-p5
- version/checkmk checkmk/2.1.0-p6
- version/checkmk checkmk/2.1.0-p7
- version/checkmk checkmk/2.1.0-p8
- version/checkmk checkmk/2.1.0-p9
- version/checkmk checkmk/2.2.0-b1
- version/checkmk checkmk/2.2.0-b2
- version/checkmk checkmk/2.2.0-b3
- version/checkmk checkmk/2.2.0-b4
- version/checkmk checkmk/2.2.0-i1