Enumeration Commands

The following commands can be used for enumerating various information about the Operating System that can in turn be used for further exploiting or elevating privileges.

User Info

id #current user info
cat /etc/passwd #list of users and their groups

OS Version and Architecture

cat /etc/issue
cat /etc/*-release
uname -a

Running Processes & Services

ps axu

Firewall Statuses & Rules

cat /etc/iptables #Mostly requires root permissions, but sometimes these files are left with weak permissions

Scheduled Tasks

cat /etc/crontab

Installed Applications & Patch Levels

dpkg -l

Readable/Writable Files

find / -writable -type d 2>/dev/null

Unmounted Disks

cat /etc/fstab
/bin/lsblk

Device Drivers & Kernel Modules

lsmod
/sbin/modinfo <module name>

Binaries that Autoelevate

find / -perm -u=s -type f 2>/dev/null