9.8

CVE-2024-47943

Improper signature verification of firmware upgrade files

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRITTAL GmbH & Co. KG
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Produkt IoT Interface & CMC III Processing Unit
Default Statusaffected
Version <6.21.00.2
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.62% 0.448
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-347 Improper Verification of Cryptographic Signature

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

https://r.sec-consult.com/rittaliot
https://www.rittal.com/de-de/products/deep/3124300
http://seclists.org/fulldisclosure/2024/Oct/4