UCF STIG Viewer Logo

The Photon operating system must implement address space layout randomization (ASLR) to protect its memory from unauthorized code execution.


Overview

Finding ID Version Rule ID IA Controls Severity
V-239140 PHTN-67-000069 SV-239140r675228_rule Medium
Description
ASLR makes it more difficult for an attacker to predict the location of attack code he or she has introduced into a process's address space during an attempt at exploitation. Additionally, ASLR also makes it more difficult for an attacker to know the location of existing code to repurpose it using return-oriented programming techniques.
STIG Date
VMware vSphere 6.7 Photon OS Security Technical Implementation Guide 2022-06-17

Details

Check Text ( C-42351r675226_chk )
At the command line, execute the following command:

# cat /proc/sys/kernel/randomize_va_space

If the value of "randomize_va_space" is not "2", this is a finding.
Fix Text (F-42310r675227_fix)
Open /etc/sysctl.d/50-security-hardening.conf with a text editor.

Ensure that the "randomize_va_space" is uncommented and set to the following:

kernel.randomize_va_space=2

At the command line, execute the following command:

# sysctl --system