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CVE-2024-47945

CRITICALCVSS 9.8/10EPSS 0.86%

Last modified

CVE-2024-47945 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
0.86%

53.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RittalIot Interface Firmware< 6.21.00.2
RittalCmc Iii Processing Units Firmware< 6.21.00.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2024-47945?
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.
How severe is CVE-2024-47945?
CVE-2024-47945 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.
How do I fix CVE-2024-47945?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-47945?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST