Description
The system suffers from the absence of a kernel module signature verification. If an attacker can execute commands on behalf of root user (due to additional vulnerabilities), then he/she is also able to load custom kernel modules to the kernel space and execute code in the kernel context. Such a flaw can lead to taking control over the entire system. First identified on Nissan Leaf ZE1 manufactured in 2020.
Problem types
CWE-347: Improper Verification of Cryptographic Signature
Product status
283C30861E
Credits
Mikhail Evdokimov (PCA Cyber Security Assessment Team)
References
www.nissan.co.uk/vehicles/new-vehicles/leaf.html
i.blackhat.com/...mov-Remote-Exploitation-of-Nissan-Leaf.pdf
pcacybersecurity.com/...n-infotainment-manufactured-by-bosch