CVEs-PoC/2021/CVE-2021-36133.md

CVE-2021-36133

Description

The OPTEE-OS CSU driver for NXP i.MX SoC devices lacks security access configuration for several models, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write operations on Secure World memory. This involves a DMA capable peripheral.

POC

Reference

• https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txt

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/f-secure-foundry/advisories