1.6.2 Ensure address space layout randomization (ASLR) is enabled - /etc/sysctl.d/*

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 /etc/sysctl.conf or a /etc/sysctl.d/* 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/2518

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-16, CSCv7|8.3

Plugin: Unix

Control ID: f8f58415adb7afdb9ea1d415c62c434ff1732ca12dff1f23937909028650912d