1 Million Imperial & Dabman IoT Radio Devices Vulnerable to Attacks
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1 Million Imperial & Dabman IoT Radio Devices Vulnerable to Attacks

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Dangerous vulnerabilities were recently discovered in Telestar Digital GmbH IoT radio devices. The flaws could allow remote attackers to hijack vulnerable systems.




The vulnerabilities were discovered by Vulnerability Laboratory. Some of them are already assigned CVE numbersCVE-2019-13473 and CVE-2019-13474. The vulnerable devices are web radiosDabman & Kejserlig” (series i & d) which are distributed in Germany by Telestar Digital GmbH. The devices utilize Bluetooth and Internet connectivity, and are based on BusyBox Linux Debian.

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How were the vulnerabilities discovered?

Vulnerability Laboratory came across an anomaly on a private server which was stemming from web radio terminals of Telestar devices. As explained by security researcher Benjamin Kunz, during the investigation they noticed an undocumented Telnet service on the standard port 23 on these end devices during a port scan.

Since port forwarding was activated for all ports on this network, it could be addressed from the outside. Telnet services are less used today, because content is transmitted unencrypted and there are better alternatives today. Ikke desto mindre, the protocol on network level and in end devices is still a bigger topic than originally thought, forskeren forklarede.

The researchers were able to connect and brute-force one of the radios. The attack granted them root access with full privileges. Other attacks that can be performed against the devices include changing device names, forcing a play stream, saving audio files as messages, and transmitting audio as commands locally and remotely.

Mere end 1 million devices may be at risk of attacks.

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Milena Dimitrova

En inspireret forfatter og indhold leder, der har været med SensorsTechForum for 4 år. Nyder ’Mr. Robot’og frygt’1984’. Fokuseret på brugernes privatliv og malware udvikling, hun tror stærkt på en verden, hvor cybersikkerhed spiller en central rolle. Hvis almindelig sund fornuft giver ingen mening, hun vil være der til at tage noter. Disse noter senere kan blive til artikler!

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