Vulnerability in Zephyrproject Zephyr
CVE-2020-10059
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.012 (67.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000
Affected products
- Zephyrproject Zephyr — versions 2.1.0, 2.2.0
- Zephyrproject-Rtos Zephyr — versions 2.1.0
Weakness classification (CWE)
References
- zephyrprojectsec.atlassian.net/browse/ZEPSEC-36 (Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/24954 (Patch, Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/24999 (Patch, Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/24997 (Patch, Third Party Advisory)
- docs.zephyrproject.org/latest/security/vulnerabilities.html
Frequently asked questions
- What is CVE-2020-10059?
- CVE-2020-10059 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Improper Certificate Validation. CVSS score: 4.8/10. Published 2020-05-11.
- How severe is CVE-2020-10059?
- Medium severity. CVSS v3 base score is 4.8 out of 10.