PT-2023-12894 · Motorola · Motorola Mtm5000

Midnight Blue · Published 2023-10-19 · Updated 2023-10-25 · CVE-2022-26942

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Motorola MTM5000 series firmwares (affected versions not specified)

Description The Motorola MTM5000 series firmwares lack pointer validation on arguments passed to trusted execution environment (TEE) modules. Two modules are used, one responsible for KVL key management and the other for TETRA cryptographic functionality. In both modules, an adversary with non-secure supervisor level code execution can exploit the issue in order to gain secure supervisor code execution within the TEE. This constitutes a full break of the TEE module, exposing the device key as well as any TETRA cryptographic keys and the confidential TETRA cryptographic primitives.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Untrusted Pointer Dereference

Weakness Enumeration

CWE-822

CWE-763

Related Identifiers

CVE-2022-26942

Affected Products

Motorola Mtm5000

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2022-26942 · Security Note
• https://twitter.com/DMFezzaReedCISA/status/1714979254360748102 · Twitter Post
• https://t.me/cibsecurity/72562 · Telegram Post
• https://tetraburst.com · Note
• https://twitter.com/CVEnew/status/1714942799756546272 · Twitter Post
• https://t.me/cvenotify/59703 · Telegram Post