CVE-2020-10059 : The UpdateHub module disables DTLS peer checking, which allows for a man in the

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.

Published 2020-05-11 23:15:12

Updated 2020-06-05 18:15:12

Source Zephyr Project

View at NVD, CVE.org

Products affected by CVE-2020-10059

Zephyrproject » Zephyr » Version: 2.1.0
cpe:2.3:o:zephyrproject:zephyr:2.1.0:*:*:*:*:*:*:*
Matching versions
Zephyrproject » Zephyr » Version: 2.2.0
cpe:2.3:o:zephyrproject:zephyr:2.2.0:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-10059

EPSS FAQ

0.10%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 40 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-10059

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:N/A:P	8.6	4.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: Partial
4.8	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L	2.2	2.5	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: Low
4.8	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L	2.2	2.5	Zephyr Project
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: Low

CWE ids for CVE-2020-10059

CWE-295 Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.
Assigned by:
- nvd@nist.gov (Primary)
- vulnerabilities@zephyrproject.org (Secondary)

References for CVE-2020-10059

https://github.com/zephyrproject-rtos/zephyr/pull/24999

[backport 24954] updatehub: Require peer verification with DTLS by d3zd3z · Pull Request #24999 · zephyrproject-rtos/zephyr · GitHub
Patch;Third Party Advisory
https://github.com/zephyrproject-rtos/zephyr/pull/24954

updatehub: Require peer verification with DTLS by d3zd3z · Pull Request #24954 · zephyrproject-rtos/zephyr · GitHub
Patch;Third Party Advisory
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10059

Vulnerabilities — Zephyr Project Documentation
https://github.com/zephyrproject-rtos/zephyr/pull/24997

[backport 24954] updatehub: Require peer verification with DTLS by d3zd3z · Pull Request #24997 · zephyrproject-rtos/zephyr · GitHub
Patch;Third Party Advisory
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-36

[ZEPSEC-36] UpdateHub Module Explicitly Disables TLS Verification - Zephyr Project Security Issues
Third Party Advisory

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Vulnerability Details : CVE-2020-10059

Products affected by CVE-2020-10059

Exploit prediction scoring system (EPSS) score for CVE-2020-10059

CVSS scores for CVE-2020-10059

CWE ids for CVE-2020-10059

References for CVE-2020-10059