CVE-2024-42467: Openhab Web Interface remote code execution (CVSS 10.0)

Description

openHAB, a provider of open-source home automation software, has add-ons including the visualization add-on CometVisu. In versions 3.4.0.M4 through 4.2.0,, the proxy endpoint of openHAB's CometVisu add-on can be accessed without authentication. This proxy-feature can be exploited as Server-Side Request Forgery (SSRF) to induce GET HTTP requests to internal-only servers, in case openHAB is exposed in a non-private network. Furthermore, this proxy-feature can also be exploited as a Cross-Site Scripting (XSS) vulnerability, as an attacker is able to re-route a request to their server and return a page with malicious JavaScript code. Since the browser receives this data directly from the openHAB CometVisu UI, this JavaScript code will be executed with the origin of the CometVisu UI. This allows an attacker to exploit call endpoints on an openHAB server even if the openHAB server is located in a private network. (e.g. by sending an openHAB admin a link that proxies malicious JavaScript.) This issue may lead up to Remote Code Execution (RCE) when chained with other vulnerabilities. Users should upgrade to version 4.2.1 of the CometVisu add-on of openHAB to receive a patch.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Affected products

Openhab Web Interface< 4.2.1

Remediation

Fixed in

Openhab Web Interface≥ 4.2.1

Patch & vendor advisories

https://github.com/openhab/openhab-webui/commit/630e8525835c698cf58856aa43782d92b18087f2

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2024-42467 being actively exploited?

CVE-2024-42467 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.04%.

How severe is CVE-2024-42467?

CVE-2024-42467 has a CVSS 3.1 base score of 10.0, rated critical. EPSS estimates a 1.04% probability of exploitation.

Which products are affected by CVE-2024-42467?

Affected products include Openhab Web Interface.

How do I fix CVE-2024-42467?

Upgrade affected software to a fixed version, for example Openhab Web Interface 4.2.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-42467 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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