Skip to main content
rfxn
LESGPL v2

Linux Environment Security

Automated security hardening for Linux systems

Linux Environment Security (LES) provides an increased level of local environment security with the goal of preventing environment-based attacks.

Such attacks include compromised system binaries, tainting the $PATH variable to point to invalid paths where trojan or malicious binaries are located, alterations to user profile scripts to activate key loggers or process-based hijacking, and traversal exploration of system paths. The possible attack trends are numerous, underscoring the importance of hardening the local environment space.

Project Downloads & Supporting Files

4

3d

7

7d

29

30d

89

90d

376

1y

Feb 18 — Feb 21

Features

Hardening

  • Automated security hardening of local environment
  • PATH variable protection against tainting and trojan injection
  • User profile script integrity enforcement
  • System binary compromise prevention
  • Traversal exploration prevention across system paths
  • Security audit and remediation of system configuration

Installation

bash
$ wget https://www.rfxn.com/downloads/les-current.tar.gz
$ tar xfz les-current.tar.gz
$ cd linux-environment-security-*
$ sudo ./install.sh

Verify Download

MD5 Signature Verification

Always verify the integrity of downloaded packages before installation.

bash
$ wget https://www.rfxn.com/downloads/les-current.tar.gz
$ wget https://www.rfxn.com/downloads/les-current.tar.gz.md5
$ md5sum -c les-current.tar.gz.md5