Random Number Generator Weakness Discovered in RT-Thread through 5.0.2
CVE-2024-25389

7.5HIGH

Key Information:

Vendor

RT-Thread

Status
Rt-thread
Vendor
CVE Published:
27 March 2024

What is CVE-2024-25389?

An issue has been identified in RT-Thread RTOS where the random number generation algorithm is insufficiently robust, utilizing a simplistic calculation method that can lead to predictable outcomes. Specifically, the algorithm defined in 'calc_random' within the source file 'drivers/misc/rt_random.c' employs a linear congruential generator approach, which is regarded as weak. This vulnerability could potentially be exploited by attackers to predict random numbers that are supposed to be unique or secure, posing significant risks in cryptographic implementations and secure communications.

References

https://github.com/RT-Thread/rt-thread/issues/8283
https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05...
https://security.humanativaspa.it/multiple-vulnerabilitie...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.