CVE-2015-4640 Information

Description

The SwiftKey language-pack update implementation on Samsung Galaxy S4 S4 Mini S5 and S6 devices relies on an HTTP connection to the skslm.swiftkey.net server which allows man-in-the-middle attackers to write to language-pack files by modifying an HTTP response. NOTE: CVE-2015-4640 exploitation can be combined with CVE-2015-4641 exploitation for man-in-the-middle code execution.

Reference

http://arstechnica.com/security/2015/06/new-exploit-turns-samsung-galaxy-phones-into-remote-bugging-devices/ http://www.kb.cert.org/vuls/id/155412 http://www.securityfocus.com/bid/75347 https://github.com/nowsecure/samsung-ime-rce-poc/ https://www.nowsecure.com/blog/2015/06/16/remote-code-execution-as-system-user-on-samsung-phones/ https://www.nowsecure.com/keyboard-vulnerability/