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.
CVE-2023-2020
MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence
Score 4.3 from GitHub Security Advisory published 2023-04-18. NVD baseline CVSS 4.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EPSS
- 32.3%
- KEV
- Not listed
Published
April 18, 2023
Last Modified
November 21, 2024
References (2)
- security@checkmkhttps://checkmk.com/werk/13981
- af854a3a-2127-422b-91ae-364da2661108https://checkmk.com/werk/13981
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Frequently asked(5)
What is CVE-2023-2020?
CVE-2023-2020 is a medium vulnerability published on April 18, 2023. 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.
When was CVE-2023-2020 disclosed?
CVE-2023-2020 was first published in the National Vulnerability Database on April 18, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-2020 actively exploited?
CVE-2023-2020 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-2020?
CVE-2023-2020 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2023-2020?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-2020, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-2020
Is Your Infrastructure Affected by CVE-2023-2020?
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