CVE intelligence and bounded remediation

CVE-2024-23822 — Thruk is a multibackend monitoring webinterface

Critical CVSS 9.8

Thruk is a multibackend monitoring webinterface. Prior to 3.12, the Thruk web monitoring application presents a vulnerability in a file upload form that allows a threat actor to arbitrarily upload files to the server to any path they desire and have permissions for. This vulnerability is known as Path Traversal or Directory Traversal. Version 3.12 fixes the issue.

Severity
Critical
CVSS
9.8 (3.1)
Published
2024-01-29
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

  • thruk / thruk

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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