CVE-2020-10059 Information

Description

The UpdateHub module disables DTLS peer checking which allows for a man in the middle attack. This is mitigated by firmware images requiring valid signatures. However there is no benefit to using DTLS without the peer checking. See NCC-ZEP-018 This issue affects: zephyrproject-rtos zephyr version 2.1.0 and later versions.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

Reference

https://docs.zephyrproject.org/latest/security/vulnerabilities.htmlcve-2020-10059 https://github.com/zephyrproject-rtos/zephyr/pull/24954 https://github.com/zephyrproject-rtos/zephyr/pull/24997 https://github.com/zephyrproject-rtos/zephyr/pull/24999 https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-36

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

LOW

Base Severity

4.8