// For flags

CVE-2022-26942

Multiple missing pointer validation checks in trusted execution module in Motorola MTM5000

Severity Score

8.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

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.

Los firmwares de la serie Motorola MTM5000 carecen de validación de puntero en los argumentos pasados a los módulos Trusted Execution Environment (TEE). Se utilizan dos módulos, uno responsable de la gestión de claves KVL y el otro de la funcionalidad criptográfica TETRA. En ambos módulos, un adversario con una ejecución de código de nivel de supervisor no segura puede aprovechar el problema para obtener una ejecución segura de código de supervisor dentro del TEE. Esto constituye una ruptura total del módulo TEE, exponiendo la clave del dispositivo, así como cualquier clave criptográfica TETRA y las primitivas criptográficas TETRA confidenciales.

*Credits: Midnight Blue
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2022-03-11 CVE Reserved
  • 2023-10-19 CVE Published
  • 2023-10-20 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-763: Release of Invalid Pointer or Reference
  • CWE-822: Untrusted Pointer Dereference
CAPEC
References (1)
URL Tag Source
https://tetraburst.com Related
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Motorola
Search vendor "Motorola"
 Mtm5500 Firmware
Search vendor "Motorola" for product "Mtm5500 Firmware"
--
Affected
in Motorola
Search vendor "Motorola"
 Mtm5500
Search vendor "Motorola" for product "Mtm5500"
--
Safe
Motorola
Search vendor "Motorola"
 Mtm5400 Firmware
Search vendor "Motorola" for product "Mtm5400 Firmware"
--
Affected
in Motorola
Search vendor "Motorola"
 Mtm5400
Search vendor "Motorola" for product "Mtm5400"
--
Safe