Vulnerability · Published May 11, 2020 · Assigned by zephyr
CVE-2020-10059UpdateHub Module Explicitly Disables TLS Verification
Medium 4.8
In plain English
A medium-severity improper certificate validation in zephyr from zephyrproject-rtos. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).
Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)1.2%top 31.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zephyrproject-rtos | zephyr | 2.1.0 – before unspecified |
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
References
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-36 x_refsource_MISC
- https://github.com/zephyrproject-rtos/zephyr/pull/24954 x_refsource_MISC
- https://github.com/zephyrproject-rtos/zephyr/pull/24999 x_refsource_MISC
- https://github.com/zephyrproject-rtos/zephyr/pull/24997 x_refsource_MISC
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10059 x_refsource_MISC