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Fencer Intel
high 8.8

CVE-2024-28826 json

Unrestricted upload and download paths in check_sftp

published 2y ago modified 4mo ago also EUVD-2024-25912

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

Improper restriction of local upload and download paths in check_sftp in Checkmk before 2.3.0p4, 2.2.0p27, 2.1.0p44, and in Checkmk 2.0.0 (EOL) allows attackers with sufficient permissions to configure the check to read and write local files on the Checkmk site server.

Patch / fix

  • Checkmk GmbH Checkmk 2.1.0p44, 2.2.0p27, 2.3.0p4
  • checkmk checkmk 2.0.0p39, 2.1.0p44, 2.2.0p27, 2.3.0p4

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2y ago

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

  • Checkmk GmbH Checkmk
  • checkmk checkmk

Classification

Weakness
  • CWE-73 External Control of File Name or Path
  • CWE-610 Externally Controlled Reference to a Resource in Another Sphere

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.