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Date: Tue, 31 Oct 2017 08:44:11 +0000 From: "Mark Wadham" <fd@....io> To: fulldisclosure@...lists.org Subject: [FD] CVE-2017-15918: Sera 1.2 local root privesc and password disclosure Sera is a free app for mac and iOS that lets you unlock your mac automatically when your iphone is within a configured proximity. Unfortunately to facilitate this it stores the users login password in their home directory at: ~/Library/Preferences/no.ignitum.SeraOSX.plist This makes root privilege escalation trivial and worse than that even facilitates dumping the keychain as we can easily obtain the user's login password. If they are an admin user we can even dump items from the system keychain. The author of Sera has said he will shut the project down and make the code publicly available so no fix is likely to be forthcoming anytime soon. It is strongly recommended not to use this app and if you have done so in the past make sure you remove this file that contains your login password. Proof of concept exploit here: https://m4.rkw.io/blog/cve201715918-sera-12-local-root-privesc-and-password-disclosure.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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