PATH:
usr
/
share
/
nmap
/
scripts
local coroutine = require "coroutine" local mssql = require "mssql" local nmap = require "nmap" local stdnse = require "stdnse" local string = require "string" local table = require "table" description = [[ Queries the Microsoft SQL Browser service for the DAC (Dedicated Admin Connection) port of a given (or all) SQL Server instance. The DAC port is used to connect to the database instance when normal connection attempts fail, for example, when server is hanging, out of memory or in other bad states. In addition, the DAC port provides an admin with access to system objects otherwise not accessible over normal connections. The DAC feature is accessible on the loopback adapter per default, but can be activated for remote access by setting the 'remote admin connection' configuration value to 1. In some cases, when DAC has been remotely enabled but later disabled, the sql browser service may incorrectly report it as available. The script therefore attempts to connect to the reported port in order to verify whether it's accessible or not. ]] --- -- @usage -- sudo nmap -sU -p 1434 --script ms-sql-dac <ip> -- -- @output -- | ms-sql-dac: -- |_ Instance: SQLSERVER; DAC port: 1533 -- author = "Patrik Karlsson" license = "Same as Nmap--See http://nmap.org/book/man-legal.html" categories = {"discovery", "safe"} hostrule = function(host) if ( mssql.Helper.WasDiscoveryPerformed( host ) ) then return mssql.Helper.GetDiscoveredInstances( host ) ~= nil else local sqlBrowserPort = nmap.get_port_state( host, {number = 1434, protocol = "udp"} ) if ( (stdnse.get_script_args( {"mssql.instance-all", "mssql.instance-name", "mssql.instance-port"} ) ~= nil) or (sqlBrowserPort and (sqlBrowserPort.state == "open" or sqlBrowserPort.state == "open|filtered")) ) then return true end end end local function checkPort(host, port) local s = nmap.new_socket() s:set_timeout(5000) local status = s:connect(host, port, "tcp") s:close() return status end local function discoverDAC(host, name, result) local condvar = nmap.condvar(result) stdnse.print_debug(2, "Discovering DAC port on instance: %s", name) local port = mssql.Helper.DiscoverDACPort( host, name ) if ( port ) then if ( checkPort(host, port) ) then table.insert(result, ("Instance: %s; DAC port: %s"):format(name, port)) else table.insert(result, ("Instance: %s; DAC port: %s (connection failed)"):format(name, port)) end end condvar "signal" end action = function( host ) local result, threads = {}, {} local condvar = nmap.condvar(result) local status, instanceList = mssql.Helper.GetTargetInstances( host ) -- if no instances were targeted, then display info on all if ( not status ) then if ( not mssql.Helper.WasDiscoveryPerformed( host ) ) then mssql.Helper.Discover( host ) end instanceList = mssql.Helper.GetDiscoveredInstances( host ) end for _, instance in ipairs(instanceList or {}) do local name = instance:GetName():match("^[^\\]*\\(.*)$") if ( name ) then local co = stdnse.new_thread(discoverDAC, host, name, result) threads[co] = true end end while(next(threads)) do for t in pairs(threads) do threads[t] = ( coroutine.status(t) ~= "dead" ) and true or nil end if ( next(threads) ) then condvar "wait" end end return stdnse.format_output( true, result ) end
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[-] daap-get-library.nse
[edit]
[-] socks-auth-info.nse
[edit]
[-] broadcast-dhcp-discover.nse
[edit]
[-] http-vuln-cve2009-3960.nse
[edit]
[-] http-coldfusion-subzero.nse
[edit]
[-] mongodb-databases.nse
[edit]
[-] xdmcp-discover.nse
[edit]
[-] http-chrono.nse
[edit]
[-] netbus-auth-bypass.nse
[edit]
[-] drda-info.nse
[edit]
[-] membase-http-info.nse
[edit]
[-] smb-flood.nse
[edit]
[-] dns-zeustracker.nse
[edit]
[-] http-apache-negotiation.nse
[edit]
[-] iscsi-info.nse
[edit]
[-] smb-server-stats.nse
[edit]
[-] mysql-vuln-cve2012-2122.nse
[edit]
[-] dns-service-discovery.nse
[edit]
[-] creds-summary.nse
[edit]
[-] oracle-sid-brute.nse
[edit]
[-] dns-recursion.nse
[edit]
[-] broadcast-pc-anywhere.nse
[edit]
[-] http-slowloris-check.nse
[edit]
[-] snmp-brute.nse
[edit]
[-] ftp-proftpd-backdoor.nse
[edit]
[-] imap-brute.nse
[edit]
[-] gkrellm-info.nse
[edit]
[-] versant-info.nse
[edit]
[-] svn-brute.nse
[edit]
[-] hadoop-datanode-info.nse
[edit]
[-] informix-brute.nse
[edit]
[-] mmouse-brute.nse
[edit]
[-] samba-vuln-cve-2012-1182.nse
[edit]
[-] broadcast-ping.nse
[edit]
[-] unusual-port.nse
[edit]
[-] smtp-brute.nse
[edit]
[-] http-vuln-cve2013-0156.nse
[edit]
[-] http-trace.nse
[edit]
[-] rmi-dumpregistry.nse
[edit]
[-] dns-blacklist.nse
[edit]
[-] ldap-brute.nse
[edit]
[-] pcanywhere-brute.nse
[edit]
[-] dns-client-subnet-scan.nse
[edit]
[-] snmp-win32-shares.nse
[edit]