Details

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

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

Supportive Information

The following resource is also helpful.

• https://www.cisco.com/c/en/us/td/docs/security/firepower/623/configuration/guide/fpmc-config-guide-v623.html

This security hardening control applies to the following category of controls within NIST 800-53: System and Information Integrity.This control applies to the following type of system Unix.

References

• 800-53|SI-16
• CSCv6|8.4

Source

• Tenable.com/audits