FILE-6344 - Restricting process details to users

This information is provided as part of the Lynis community project. It is related to Lynis control FILE-6344 and should be considered as-is and without guarantees. Any advice and commands should be tested before implementing them in production environments.

Control details
CategoryFile Systems

Description

The pseudo file system /proc reveals a process data for all users. Especially in shared environments, or where multiple users have access, this is a security risk. Even for a basic web server it may help restricting who can see process data in /proc, to prevent possible information leakage.

How to solve

Change the hidepid mount option on /proc.

Need more details?

Consider the upgrade to Lynis Enterprise to receive additional details and guidance. The Enterprise version helps to you with daily health checks of your environment, learn in-depth system hardening, and resources to protect your systems better.

See demo

About

Lynis is a technical security auditing tool for Unix flavors like Linux, macOS, AIX, Solaris, and *BSD. It is open source software and free to use. Typical usage include system hardening, compliance testing, and vulnerability scanning. The project has an active community, including development via GitHub.

Lynis Enterprise

Do you need to collect data from multiple systems or compliance reporting? Lynis Enterprise uses Lynis to collect the data and make your work easier.

Benefits: automate security audits, detailed reporting, compliance testing.

  • Centralized management
  • Improvement plan with priorities
  • Reporting
  • Dashboards
  • Predefined policies
  • Integration (API)
  • Improvement snippets for tools like Ansible, Chef, Cfengine, Puppet, and SaltStack
Take the Tour