CVE-2024-47943 - Rittal IoT Interface & CMC III Processing Unit HMAC Verification Bypass

CVE ID : CVE-2024-47943
Published : Oct. 15, 2024, 9:15 a.m. | 24 minutes ago
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.
Severity: 0.0 | NA
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