Ensure address space layout randomization (ASLR) is enabled - sysctl

Information

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

See Also

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

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

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

Plugin: Unix

Control ID: eaa9ebbeb91b8b97e7ab5e560cc02004c47016ae3f72f32a57acc31f1a9f66d9