1.5.3 Ensure address space layout randomization (ASLR) is enabled (sysctl.conf/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 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: 7c99fd2dce787c405374f0481417cc37207b13443e69770832a6b1556d34daf4