Hackers found 47 new vulnerabilities in 23 IoT devices at DEF CON

Smart door locks, padlocks, thermostats, refrigerators, wheelchairs and even solar panel arrays were among the Internet-of-Things devices that fell to hackers during the IoT Village held at the DEF CON security conference in August.

A month after the conference ended, the results are in: 47 new vulnerabilities affecting 23 devices from 21 manufacturers were disclosed during the IoT security talks, workshops and onsite hacking contests.

The types of vulnerabilities found ranged from poor design decisions like the use of plain text and hard-coded passwords to coding flaws like buffer overflows and command injection.

Door locks and padlocks from vendors like Quicklock, iBlulock, Plantraco, Ceomate, Elecycle, Vians, Lagute, Okidokeys, Danalock were found to be vulnerable to password sniffing and replay attacks, where a captured command can be replayed later to open the locks.

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