112 lines
1.6 KiB
Markdown
112 lines
1.6 KiB
Markdown
# Linux Enumeration
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## First Checks
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```sh
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cat /etc/*-release
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cat /proc/version
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```
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```sh
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hostname or cat /etc/hostname
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cat /etc/hosts
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```
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```sh
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cat /etc/resolve.conf
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cat /etc/systemd/resolved.conf
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uname -a
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cat /etc/issue
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ps wuax or ps ajxf or ps -A
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printenv or env
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cat /etc/timezone or timedatectl
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```
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## Users
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```sh
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sudo -l
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id
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whoami
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groups and getent group or cat /etc/group
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cat /etc/passwd | column -t -s :
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cat /etc/shadow
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cat /etc/group
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cat /etc/sudoers
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history
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cat /var/mail
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```
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## Network Info
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* The output of information will be different, depending on permissions of the user
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```sh
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ip a or ifconfig
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ip route
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cat /etc/network/interfaces
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netstat -natup or ss -natup
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netstat -tupln or ss -tulpn
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netstat -s and netstat -i
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lsof -i :<port>
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```
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## Login Info
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```sh
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last -f /var/log/wtmp
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last -f /var/log/btmp
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last
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w
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who
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```
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## Syslog
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```sh
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journalctl -xe
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less /var/log/syslog
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```
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## Auth Logs
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```sh
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cat /var/log/auth.log | less
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cat /var/log/access.log | less
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```
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## Find Files
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* User files
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```sh
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find / -user $USER 2>/dev/null | grep -vE "run|proc|var"
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```
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* Find SUID permissions on files and dirs
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* `find / -perm /6000 -ls 2>/dev/null`
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* Find writeables dirs
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* `find / -writable -type d 2>/dev/null` or `find / -perm -o w -type d 2>/dev/null`
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* `find / -perm -o x -type d 2>/dev/null`
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* Find writeable subdirs
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`find / -writable 2>/dev/null | cut -d "/" -f 2,3 | grep -v proc | sort -u`
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* `cat ~/.viminfo`
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## Services
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```sh
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ls -al /etc/systemd/system && ls -la /var/lib/systemd/system || ls -la /etc/init.d
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```
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```sh
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cat /etc/crontab
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crontab -l
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cat /etc/bash.bashrc ; cat /etc/profile
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```
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## Packet Managers
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* pacman, apt, dpkg, dnf etc.
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