{ "containers": { "cna": { "affected": [ { "product": "zephyr", "vendor": "zephyrproject-rtos", "versions": [ { "lessThan": "unspecified", "status": "affected", "version": "2.1.0", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "value": "NCC Group for report" } ], "datePublic": "2020-05-01T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "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. 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