Medium severity · published May 11, 2020
CVE-2020-10059
The UpdateHub module disables DTLS peer checking, which allows for a man in the middle attack
4.8
CVSS
1.2%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZE
Zephyr · Zephyrproject
2.1.0; 2.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10059
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-10059
docs.zephyrproject.org
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10059
Patch
https://github.com/zephyrproject-rtos/zephyr/pull/24954
Patch
https://github.com/zephyrproject-rtos/zephyr/pull/24997
Patch
https://github.com/zephyrproject-rtos/zephyr/pull/24999
Third Party Advisory
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-36
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