Linux Privilege Escalation

Purpose

Execute systematic privilege escalation assessments on Linux systems to identify and exploit misconfigurations, vulnerable services, and security weaknesses that allow elevation from low-privilege user access to root-level control. This skill enables comprehensive enumeration and exploitation of kernel vulnerabilities, sudo misconfigurations, SUID binaries, cron jobs, capabilities, PATH hijacking, and NFS weaknesses.

Inputs / Prerequisites

Required Access

• Low-privilege shell access to target Linux system
• Ability to execute commands (interactive or semi-interactive shell)
• Network access for reverse shell connections (if needed)
• Attacker machine for payload hosting and receiving shells

Technical Requirements

• Understanding of Linux filesystem permissions and ownership
• Familiarity with common Linux utilities and scripting
• Knowledge of kernel versions and associated vulnerabilities
• Basic understanding of compilation (gcc) for custom exploits