CVE-2024-42469Public exploitNetwork attack vector

Remote code execution via traversed file overwrite

Published Aug 9, 2024 · Updated Aug 9, 2024

Path traversal in openHAB WebUI's CometVisu before 4.2.1 allows remote attackers to overwrite files through an unauthenticated PUT request. FsResource.update appends the user-controlled path query value to the configuration folder and saves the supplied body without constraining the resolved target. Code execution requires a writable script to be replaced and later executed, while the immediate consequence is arbitrary overwrite of an existing writable file.

CVSS severity9.8
Critical
EPSS probability1.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in openHAB WebUI's CometVisu before 4.2.1 allows remote attackers to overwrite files through an unauthenticated PUT request. FsResource.update appends the user-controlled path query value to the configuration folder and saves the supplied body without constraining the resolved target. Code execution requires a writable script to be replaced and later executed, while the immediate consequence is arbitrary overwrite of an existing writable file.

The record

CVE
CVE-2024-42469
Published
Aug 9, 2024
Updated
Aug 9, 2024
Vendor
openHAB
Product
openHAB
Classifications
CWE-22, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 9, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

openHAB · openHABversion=0 <4.2.1
openHAB · openHAB WebUIversion=< 4.2.1

Published CVSS scores

9.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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