Jelly Bean is the alias name of the Android operating system version 4.1 has been released by Google this month.
Android operating system 4.1Jelly Bean is apparently not only has new features, but also has better security level and up to date than previous versions,
This was revealed in a report from security researchers Jon Oberheide Duo Security.
According to Oberheide, Android-based security to implement 4.1Jelly Bean Adress Space Layout Randomization (ASLR). Thanks to the performance of ASLR basis, the hacker and malware difficult to exploit memory corruption due to memory mapping for the operating system underwent randomization (Randomization).
Aligned with data execution prevention technology is also embedded in Google’s new Android OS, the Jelly Bean a mobile operating system’s security system is best.
Actually Android OS 4.1Jelly Bean is not the first to implement ASLR. Previous generations, Android 4.0 Ice Cream Sandwich also has security features ini.Ttetapi, according to Oberheide, the implementation of ASLR on Ice Cream Sandwich less than the maximum and not really able to reduce the threat in the real world.
“Executable mapping in the process address space randomization does not go through the Ice Cream Sandwich, thus allowing the occurrence of ROP-style attacks that use the entire executable. In Jelly Bean, most have been compiled or binary is now connected with PIE flag, which means that the executable mapping will be randomized to correctly when executed, “said Oberheide.
Additionally Android 4.1Jelly Bean also has a better defense mechanism against malicious code execution or information leaks.
Other mobile operating systems are also relatively safe is the IOS 6 released Apple. OS is implemented in-kernel ASLR is even better than the Jelly Bean ASLR. IOS version 6 beta has been released in beta this week. Full version is scheduled to slide on the third kurtal 2012.
“Apple has raised the safety standards to the level of exploitation of kernel methods to implement effective mitigation such as NX, ASLR, and mandatory code signing.
Thankfully Android starts to move in the same direction, and the Jelly Bean is a major step in this regard. “
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