Vulnerability in Rittal Gmbh & Co. Kg Iot Interface Cmc Iii Processing Unit
CVE-2024-47943
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Rittal Gmbh & Co. Kg Iot Interface Cmc Iii Processing Unit — versions <6.21.00.2
Weakness classification (CWE)
References
- 551230f0-3615-47bd-b7cc-93e92e730bbf (third-party-advisory)
- 551230f0-3615-47bd-b7cc-93e92e730bbf (patch)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-47943?
- CVE-2024-47943 is a critical-severity vulnerability in Rittal Gmbh & Co. Kg Iot Interface Cmc Iii Processing Unit, classified under Improper Verification of Cryptographic Signature. CVSS score: 9.8/10. Published 2024-10-15.
- How severe is CVE-2024-47943?
- Critical severity. CVSS v3 base score is 9.8 out of 10.