1.5.3 Ensure address space layout randomization (ASLR) is enabled

Information

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.

Solution

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

See Also

https://workbench.cisecurity.org/files/1866

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-16, CSCv6|8.4

Plugin: Unix

Control ID: a8c24af5f5bdd7ecbffac151af4c0d49ed7cfb93c3196b21a1867cf3e0ee152f