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Ring-a-ding: IoT doorbell exposed customer Wi-Fi passwords to eavesdroppers

Ring's configuration app sent Wi-Fi setup information unencrypted to some doorbell devices, exposing customers' home networks.
Enlarge / Ring’s configuration app despatched Wi-Fi setup info unencrypted to some doorbell gadgets, exposing prospects’ dwelling networks.
Smith Assortment/Gado / Getty Photographs

Ring has pushed out a repair to a safety challenge within the configuration code for its Web-connected dwelling safety merchandise. Researchers from Bitdefender notified Ring in June of a flaw in Ring Video Doorbell Professional cameras’ software program that made it potential for wi-fi eavesdroppers to seize the Wi-Fi credentials of consumers throughout the machine’s setup—as a result of these credentials have been despatched over an unsecured Wi-Fi connection to the machine utilizing unencrypted HTTP.

In a report on the bug issued yesterday as a part of a coordinated disclosure with Ring, Bitdefender researchers defined that when prospects configured a Ring Video Doorbell Professional out of the field:

…the smartphone app [for Ring] should ship the wi-fi community credentials. When getting into configuration mode, the machine creates an entry level with no password (the SSID incorporates the final three bytes from the MAC tackle). As soon as this community is up, the app connects to it mechanically, queries the machine, then sends the credentials to the native community. All these exchanges are carried out by means of plain HTTP. This implies the credentials are uncovered to any close by eavesdroppers.

An attacker might benefit from this bug by forcing a sufferer to reconfigure the doorbell. The attacker might use a Wi-Fi deauthorization (“deauth”) assault in opposition to the machine to make it re-enter configuration mode and will use a malicious Wi-Fi machine to make the Ring doorbell drop off its community.

The doorbell’s proprietor would then have to note that the doorbell is disconnected, which can require the attacker or another person to ring the doorbell earlier than the focused proprietor realizes the doorbell is offline. When the doorbell is put again into configuration mode, the app will provide to reconnect the doorbell to the Wi-Fi community—after which resend the credentials to the doorbell in an HTTP message encoded in XML.

The attacker would then be capable of connect with the sufferer’s dwelling Wi-Fi community if there are not any different safety measures in place to cease them (corresponding to machine white-listing or partitioning of the Wi-Fi community).

All affected gadgets ought to now be patched, based on Ring and Bitdefender. However that is one other instance of why house owners of “Web of Issues” gadgets ought to think about using Wi-Fi routers able to segmenting networks or providing “visitor” Wi-Fi networks that prohibit entry by related gadgets to the Web solely. And deauth assaults can nonetheless be used to knock these gadgets offline—permitting a burglar or “porch pirate” to cowl their tracks by disabling video recording.

About Sean Gallagher

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