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Message-ID: <514e94fb-61b7-5b27-0234-8e73e3881015@securify.nl> Date: Sat, 13 Jan 2018 17:17:40 +0100 From: Summer of Pwnage via Fulldisclosure <fulldisclosure@...lists.org> To: fulldisclosure@...lists.org Subject: [FD] Broken TLS certificate pinning in VTech DigiGo Kid Connect app ------------------------------------------------------------------------ Broken TLS certificate pinning in VTech DigiGo Kid Connect app ------------------------------------------------------------------------ Sipke Mellema, September 2017 ------------------------------------------------------------------------ Abstract ------------------------------------------------------------------------ VTech's DigiGo is a hand held smart device for children. The device contains a chat application chatting with friends and family, called Kid Connect. The app has a broken certificate pinning implementation that allows a man in the middle attack on text sent by the chat app. ------------------------------------------------------------------------ Tested versions ------------------------------------------------------------------------ This issue was tested on a VTech DigiGo running firmware version 83.60630. It is likely that other versions are also affected. ------------------------------------------------------------------------ Fix ------------------------------------------------------------------------ VTech pushed a firmware update to address this issue on 6 November, 2017. The firmware version still displays as 83.60630. ------------------------------------------------------------------------ Details ------------------------------------------------------------------------ https://sumofpwn.nl/advisory/2017/broken-tls-certificate-pinning-in-vtech-digigo-kid-connect-app.html _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
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