Linux Priv Escalation

# priv esc enumeration scripts
https://github.com/rebootuser/LinEnum
https://github.com/reider-roque/linpostexp/blob/master/linprivchecker.py
http://pentestmonkey.net/tools/audit/unix-privesc-check
# Kernel and OS
uname -a
uname -mrs
cat /etc/issue
cat /etc/lsb-release # Debian based
cat /etc/redhat-release # Redhat based
# running services and find services run boy root
ps aux
ps aux | grep root
# which applications are installed
dpkg -l
ls -alh /usr/bin/
ls -alh /sbin/
# scheduled tasks
crontab -l
# port forwarding
ssh -L 8080:127.0.0.1:80 root@192.168.1.7 # Local Port
ssh -R 8080:127.0.0.1:80 root@192.168.1.7 # Remote Port
# tunneling
ssh -D 127.0.0.1:9050 -N [username]@[ip]
proxychains ifconfig
# sensitive files
cat /etc/passwd
cat /etc/group
cat /etc/shadow
ls -alh /var/mail/
# check home dirs
ls -ahlR /root/
ls -ahlR /home
# private key search
cat ~/.ssh/authorized_keys
cat ~/.ssh/identity.pub
cat ~/.ssh/identity
cat ~/.ssh/id_rsa.pub
cat ~/.ssh/id_rsa
cat ~/.ssh/id_dsa.pub
cat ~/.ssh/id_dsa
cat /etc/ssh/ssh_config
cat /etc/ssh/sshd_config
cat /etc/ssh/ssh_host_dsa_key.pub
cat /etc/ssh/ssh_host_dsa_key
cat /etc/ssh/ssh_host_rsa_key.pub
cat /etc/ssh/ssh_host_rsa_key
cat /etc/ssh/ssh_host_key.pub
cat /etc/ssh/ssh_host_key
# Sticky Bits & SUID & GUID
find / -perm -1000 -type d 2>/dev/null # Sticky bit - Only the owner of the directory or the owner of a file can delete or rename here.
find / -perm -g=s -type f 2>/dev/null # SGID (chmod 2000) - run as the group, not the user who started it.
find / -perm -u=s -type f 2>/dev/null # SUID (chmod 4000) - run as the owner, not the user who started it.
find / -perm -g=s -o -perm -u=s -type f 2>/dev/null # SGID or SUID

Linux Privilege Escalation Checklist

Binaries/Programs Privilege Escalation

Automated Script