Is CVE-2021-40904 in the CISA KEV catalog?

No. CVE-2021-40904 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-40904?

CVE-2021-40904 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-40904?

CVE-2021-40904 has an EPSS score of 3.76% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-40904?

Upgrade checkmk to 1.6.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-40904

HIGHEPSS 89th pctl

8.8

CVSS v3

NVD

Description

The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a misconfiguration of the web-app Dokuwiki (installed by default), which allows embedded php code. As a result, remote code execution is achieved. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session by a user with the role of administrator.

CWE-276

How to fix

Remediation Available

checkmkNVD

Affected:>= 1.5.0, < 1.6.0Fixed in:1.6.0CVE-2021-40904derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

3.76%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Patch1

github.com

Product1

checkmk.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.