Major exploit found in Samsung models using Exynos 4210 and Exynos 4412 processors
Some of Samsung's flagship devices are affected
In the meantime, here is a list of devices that could be affected. Samsung Galaxy S II (GT-I9100), Samsung Galaxy S III (GT-I9300), Samsung Galaxy S III LTE (GT-I9305), Samsung GALAXY Note (GT-N7000), Samsung GALAXY Note II (GT-N7100), Samsung GALAXY Note II Verizon-Locked Bootloader (SCH-I605), Samsung GALAXY Note 10.1 (GT-N8000), Samsung Galaxy Note 10.1 (GT-N8010).
"Hi,
Recently discover a way to obtain root on S3 without ODIN flashing.
The security hole is in kernel, exactly with the device /dev/exynos-mem.
This device is R/W by all users and give access to all physical memory … what’s wrong with Samsung ? […]
The good news is we can easily obtain root on these devices and the bad is there is no control over it.
Ram dump, kernel code injection and others could be possible via app installation from Play Store. It certainly exists many ways to do that but Samsung give an easy way to exploit. This security hole is dangerous and expose phone to malicious apps. Exploitation with native C and JNI could be easily feasible."-alephazin, XDA
Recently discover a way to obtain root on S3 without ODIN flashing.
The security hole is in kernel, exactly with the device /dev/exynos-mem.
This device is R/W by all users and give access to all physical memory … what’s wrong with Samsung ? […]
The good news is we can easily obtain root on these devices and the bad is there is no control over it.
Ram dump, kernel code injection and others could be possible via app installation from Play Store. It certainly exists many ways to do that but Samsung give an easy way to exploit. This security hole is dangerous and expose phone to malicious apps. Exploitation with native C and JNI could be easily feasible."-alephazin, XDA
source: XDA, TheNextWeb, via AndroidAuthority
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