PT-2024-32905 · Rittal · Iot Interface & Cmc Iii Processing Unit

Johannes Kruchem · Published 2024-10-15 · Updated 2024-10-16 · CVE-2024-47943

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Rittal IoT Interface & CMC III Processing Unit (affected versions not specified)

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 similar to 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2024-47943

Affected Products

Iot Interface & Cmc Iii Processing Unit

References · 9

• https://rittal.com/de-de/products/deep/3124300 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-47943 · Security Note
• https://twitter.com/the_yellow_fall/status/1846365520612020282 · Twitter Post
• https://r.sec-consult.com/rittaliot · Note
• http://seclists.org/fulldisclosure/2024/Oct/4 · Note
• https://twitter.com/VulmonFeeds/status/1846150378724688150 · Twitter Post
• https://twitter.com/CVEnew/status/1846118221528604949 · Twitter Post
• https://t.me/cvedetector/7894 · Telegram Post
• https://t.me/cvenotify/98035 · Telegram Post