1.5.3 Ensure address space layout randomization (ASLR) is enabled (Scored)

Level 1 - Server 
Level 1 - Workstation

Address space layout randomization (ASLR) is an exploit mitigation technique which randomly arranges the address space of key data areas of a process.

Randomly placing virtual memory regions will make it difficult to write memory page exploits as the memory placement will be consistently shifting.

Run the following command and verify output matches:

# sysctl kernel.randomize_va_space 
kernel.randomize_va_space = 2

Set the following parameter in the /etc/sysctl.conf file:

kernel.randomize_va_space = 2

Run the following command to set the active kernel parameter:

# sysctl -w kernel.randomize_va_space=2