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CVE-2024-47945

Rittal Cmc Iii Processing Units Firmware vulnerability

9.8 CRITICALPublic exploitEPSS 0.87%
  1. Published15 Oct 2024

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Rittal Cmc Iii Processing Units Firmware< 6.21.00.2
Rittal IoT Interface Firmware< 6.21.00.2

Remediation

Fixed in
Rittal Cmc Iii Processing Units Firmware≥ 6.21.00.2
Rittal IoT Interface Firmware≥ 6.21.00.2

References

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Frequently asked

Is CVE-2024-47945 being actively exploited?

CVE-2024-47945 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.87%.

How severe is CVE-2024-47945?

CVE-2024-47945 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.87% probability of exploitation.

Which products are affected by CVE-2024-47945?

Affected products include Rittal Cmc Iii Processing Units Firmware, Rittal IoT Interface Firmware.

How do I fix CVE-2024-47945?

Upgrade affected software to a fixed version, for example Rittal Cmc Iii Processing Units Firmware 6.21.00.2, Rittal IoT Interface Firmware 6.21.00.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-47945 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.