UpdateHub Module Explicitly Disables TLS Verification (zephyrproject-rtos zephyr)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.21 % · percentile 68 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- zephyr
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-295 — Improper Certificate Validation
References
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-36
- https://github.com/zephyrproject-rtos/zephyr/pull/24954
- https://github.com/zephyrproject-rtos/zephyr/pull/24999
- https://github.com/zephyrproject-rtos/zephyr/pull/24997
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10059
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L | zephyr |
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L | NVD · vulnerabilities@zephyrproject.org (Secondary) |
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.8 | AV:N/AC:M/Au:N/C:P/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-2524
- GCVE · GCVE-0-2020-10059
Affected configurations (NVD CPE)
cpe:2.3:o:zephyrproject:zephyr:2.1.0:*:*:*:*:*:*:*cpe:2.3:o:zephyrproject:zephyr:2.2.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| zephyrproject-rtos · zephyr | affected 2.1.0 < unspecified |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |