by Kastro
Paper/Archive/CVE-2024-47945

CVE-2024-47945

RITTAL GmbH & Co. KG IoT Interface & CMC III Processing Unit — Predictable Session ID

EPSS 0.9%public exploitCVSS 9.8
critical.is priorityof 100
51
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 58.8.588 × 2011.8Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
IoT Interface & CMC III Processing Unit<6.21.00.2–CNA
iot_interface_and_cmc_iii_processing_unit< 6.21.00.26.21.00.2CISA-ADP

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

writeupr.sec-consult.com/rittaliotpatchrittal.com/de-de/products/deep/3124300refseclists.org/fulldisclosure/2024/Oct/4