CVE-2024-47945

Predictable Session ID

The devices are vulnerable to session hijacking due to insufficient entropy in its session ID generation algorithm. The session IDs are predictable, with only 32,768 possible values per user, which allows attackers to pre-generate valid session IDs, leading to unauthorized access to user sessions. This is not only due to the use of an (insecure) rand() function call but also because of missing initialization via srand(). As a result only the PIDs are effectively used as seed.

Affected

RITTAL GmbH & Co. KG · IoT Interface & CMC III Processing Unit

CVSS v3.1 NVD

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

CVSS v3.1 CNA

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

EPSS

0.87% chance of exploitation in the next 30 days, 58th percentile

Published

2024-10-15

Updated

2025-11-03

Proof-of-concept exploits (1)

• https://r.sec-consult.com/rittaliot

Security advisories

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

References

• CVE Record
• NVD entry