Permissions

Sudo

sudo -l                                                                                                                    

# bash: command not found: sudo
find / -name sudo 2>/dev/null

SUID

find / -perm -4000 2>/dev/null
find / -perm -4000 -type f 2>/dev/null
find / -perm -4000 -ls 2>/dev/null
find / -perm -4000 -exec ls -l {} \; 2>/dev/null

Capabilities

/usr/sbin/getcap -r / 2>/dev/null

Writable

find / -writable 2>/dev/null
find / -writable 2>/dev/null | grep -viE "proc|sys|dev"
find / -writable -user low 2>/dev/null

Users

grep "sh$" /etc/passwd

Groups

id ; groups

cat /etc/group
getent group
getent group sudo

linPEAS

https://github.com/peass-ng/PEASS-ng/tree/master/linPEAS

curl -L https://github.com/peass-ng/PEASS-ng/releases/latest/download/linpeas.sh | sh

Cron

https://github.com/DominicBreuker/pspy

cat /etc/crontab
./pspy

OS / Arch / Kernel

uname -a
cat /proc/version
cat /etc/issue
hostnamectl
lsb_release -a
arch