CVE-2024-47943

Published: Oct 15, 2024Modified: Nov 3, 2025

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

The firmware upgrade function in the admin web interface of the Rittal IoT Interface & CMC III Processing Unit devices checks if the patch files are signed before executing the containing run.sh script. The signing process is kind of an HMAC with a long string as key which is hard-coded in the firmware and is freely available for download. This allows crafting malicious "signed" .patch files in order to compromise the device and execute arbitrary code.

Related CWEs

CWE-347

Improper Verification of Cryptographic Signature

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

References (3)

https://r.sec-consult.com/rittaliot

Source: 551230f0-3615-47bd-b7cc-93e92e730bbf

https://www.rittal.com/de-de/products/deep/3124300

Source: 551230f0-3615-47bd-b7cc-93e92e730bbf

http://seclists.org/fulldisclosure/2024/Oct/4

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.