Supra smart TVs allow anyone on wifi network to switch video to whatever they want

Owners of Supra Smart Cloud TVs are in danger of getting some unwanted programming: it’s possible for miscreants or malware on your Wi-Fi network to switch whatever you’re watching for video of their or its choosing.

Bug-hunter Dhiraj Mishra laid claim to CVE-2019-12477, a remote file inclusion zero-day vulnerability that allows anyone with local network access to specify their own video to display on the TV, overriding whatever is being shown, with no password necessary. As such it’s more likely to be used my mischievous family members than hackers.

Mishra told The Register the issue is due to a complete lack of any authentication or session management in the software controlling the Wi-Fi-connected telly. By crafting a malicious HTTP GET request, and sending it to the set over the network, an attacker would be able to provide whatever video URL they desired to the target, and have the stream played on the TV without any sort of security check.

Source: Supra smart TVs aren’t so super smart: Hole lets hackers go all Max Headroom on e-tellies • The Register

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