diff --git a/CHANGELOG b/CHANGELOG index 9110efd2a..42ff0eb86 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -1,7 +1,11 @@ # Nmap Changelog ($Id$); -*-text-*- +o [NSE] Added the Netware Core Protocol (NCP) library and the scripts + ncp-serverinfo and ncp-enum-users. [Patrik] + o [NSE] Added ldap-novell-getpass, a script that provides support for retrieving Universal Passwords in plain-text from Novell eDirectory. + [Patrik] o [ZenMmap] Fixed issue with ports closed in newer scan not being removed from the ports list [Colin Rice] diff --git a/nselib/ncp.lua b/nselib/ncp.lua new file mode 100644 index 000000000..8619e1944 --- /dev/null +++ b/nselib/ncp.lua @@ -0,0 +1,1199 @@ +--- A tiny implementation of the Netware Core Protocol (NCP) +-- While NCP was originally a Netware only protocol it's now present on +-- both Linux and Windows platforms running Novell eDirectory. +-- +-- The library implements a small amount of NCP functions based on various +-- packet dumps generated by Novell software, such as the Novell Client and +-- Console One. The functions are mainly used for enumeration and discovery +-- +-- The library implements a number of different classes where the Helper is +-- the one that should be the easiest to use from scripts. +-- +-- The following classes exist: +-- +-- * Packet +-- - Implements functions for creating and serializing a NCP packet +-- +-- * ResponseParser +-- - A static class containing a bunch of functions to decode server +-- responses +-- +-- * Response +-- - Class responsible for decoding NCP responses +-- +-- * NCP +-- - Contains the "native" NCP functions sending the actual request to the +-- server. +-- +-- * Socket +-- - A buffered socket implementation +-- +-- * Helper +-- - The prefered script interface to the library containing functions +-- that wrap functions from the NCP class using more descriptive names +-- and easier interface. +-- +-- * Util +-- - A class containing mostly decoding and helper functions +-- +-- The following example code illustrates how to use the Helper class from a +-- script. The example queries the server for all User objects from the root. +-- +-- +-- local helper = ncp.Helper:new(host,port) +-- local status, resp = helper:connect() +-- status, resp = helper:search("[Root]", "User", "*") +-- status = helper:close() +-- +-- + +--@author Patrik Karlsson +--@copyright Same as Nmap--See http://nmap.org/book/man-legal.html + +-- Version 0.1 +-- Created 24/04/2011 - v0.1 - created by Patrik Karlsson + +module(... or "ncp", package.seeall) + +require 'ipops' + +NCPType = { + CreateConnection = 0x1111, + ServiceRequest = 0x2222, + ServiceReply = 0x3333, + DestroyConnection = 0x5555, +} + +Status = { + CONNECTION_OK = 0, + COMPLETION_OK = 0, +} + +NCPFunction = { + GetMountVolumeList = 0x16, + GetFileServerInfo = 0x17, + Ping = 0x68, + EnumerateNetworkAddress = 0x7b, + SendFragmentedRequest = 0x68, +} + +NCPVerb = { + Resolve = 1, + List = 5, + Search = 6, +} + +-- The NCP Packet +Packet = { + + --- Creates a new instance of Packet + -- @return o instance of Packet + new = function(self) + local o = {} + setmetatable(o, self) + self.__index = self + o.ncp_ip = { signature = "DmdT", replybuf = 0, version = 1 } + o.task = 1 + o.func = 0 + return o + end, + + --- Sets the NCP Reply buffer size + -- @param n number containing the buffer size + setNCPReplyBuf = function(self, n) self.ncp_ip.replybuf = n end, + + --- Sets the NCP packet length + -- @param n number containing the length + setNCPLength = function(self, n) self.ncp_ip.length = n end, + + --- Gets the NCP packet length + -- @return n number containing the NCP length + getNCPLength = function(self) return self.ncp_ip.length end, + + --- Sets the NCP packet type + -- @param t number containing the NCP packet type + setType = function(self, t) self.type = t end, + + --- Gets the NCP packet type + -- @return type number containing the NCP packet type + getType = function(self) return self.type end, + + --- Sets the NCP packet function + -- @param t number containing the NCP function + setFunc = function(self, f) self.func = f end, + + --- Gets the NCP packet function + -- @return func number containing the NCP packet function + getFunc = function(self) return self.func end, + + --- Sets the NCP sequence number + -- @param seqno number containing the sequence number + setSeqNo = function(self, n) self.seqno = n end, + + --- Sets the NCP connection number + -- @param conn number containing the connection number + setConnNo = function(self, n) self.conn = n end, + + --- Gets the NCP connection number + -- @return conn number containing the connection number + getConnNo = function(self) return self.conn end, + + --- Sets the NCP sub function + -- @param subfunc number containing the subfunction + setSubFunc = function(self, n) self.subfunc = n end, + + --- Gets the NCP sub function + -- @return subfunc number containing the subfunction + getSubFunc = function(self) return self.subfunc end, + + --- Gets the Sequence number + -- @return seqno number containing the sequence number + getSeqNo = function(self) return self.seqno end, + + --- Sets the packet length + -- @param len number containing the packet length + setLength = function(self, n) self.length = n end, + + --- Sets the packet data + -- @param data string containing the packet data + setData = function(self, data) self.data = data end, + + --- Gets the packet data + -- @return data string containing the packet data + getData = function(self) return self.data end, + + --- Sets the packet task + -- @param task number containing the packet number + setTask = function(self, task) self.task = task end, + + --- "Serializes" the packet to a string + __tostring = function(self) + local UNKNOWN = 0 + local data = bin.pack(">AIIISCCCCC", self.ncp_ip.signature, + self.ncp_ip.length or 0, self.ncp_ip.version, + self.ncp_ip.replybuf, self.type, self.seqno, + self.conn, self.task, UNKNOWN, self.func ) + + if ( self.length ) then data = data .. bin.pack(">S", self.length) end + if ( self.subfunc ) then data = data .. bin.pack("C", self.subfunc) end + if ( self.data ) then data = data .. bin.pack("A", self.data) end + + return data + end, + +} + +-- Parses different responses into suitable tables +ResponseParser = { + + --- Determines what parser to call based on the contents of the client + -- request and server response. + -- @param req instance of Packet containing the request to the server + -- @param resp instance of Response containing the server response + -- @return status true on success, false on failure + -- @return resp table (on success) containing the decoded response + -- @return err string (on failure) containing the error message + parse = function(req, resp) + local func, subfunc, typ = req:getFunc(), req:getSubFunc(), req:getType() + + if ( ResponseParser[func] ) then + return ResponseParser[func](resp) + elseif ( NCPFunction.SendFragmentedRequest == func ) then + if ( 1 == subfunc ) then + return ResponseParser.Ping(resp) + elseif ( 2 == subfunc ) then + local data = req:getData() + if ( #data < 21 ) then + return false, "Invalid NCP request, could not parse" + end + local pos, verb = bin.unpack("srvname + -- os_major + -- os_minor + -- conns_supported + -- conns_inuse + -- vols_supported + -- os_rev + -- sft_support + -- tts_level + -- conns_max_use + -- acct_version + -- vap_version + -- qms_version + -- print_version + -- internet_bridge_ver + -- mixed_mode_path + -- local_login_info + -- product_major + -- product_minor + -- product_rev + -- os_lang_id + -- support_64_bit + -- @return error message (if status is false) + [NCPFunction.GetFileServerInfo] = function(resp) + local data = resp:getData() + local len = #data + + if ( len < 78 ) then + return false, "Failed to decode GetFileServerInfo" + end + + local result = {} + local pos + + pos, result.srvname, result.os_major, result.os_minor, + result.conns_supported, result.conns_inuse, + result.vols_supported, result.os_rev, result.sft_support, + result.tts_level, result.conns_max_use, result.acct_version, + result.vap_version, result.qms_version, result.print_version, + result.virt_console_ver, result.sec_restrict_ver, + result.internet_bridge_ver, result.mixed_mode_path, + result.local_login_info, result.product_major, + result.product_minor, result.product_rev, result.os_lang_id, + result.support_64_bit = bin.unpack(">A48CCSSSCCCSCCCCCCCCCSSSCC", data) + + return true, result + end, + + --- Decodes a GetMountVolumeList response + -- @param resp string containing the response as received from the server + -- @return status true on success, false on failure + -- @return response table of vol entries (if status is true) + -- Each vol entry is a table containing the following fields: + -- vol_no and vol_name + -- @return error message (if status is false) + [NCPFunction.GetMountVolumeList] = function(resp) + local data = resp:getData() + local len = #data + + local pos, items, next_vol_no = bin.unpack("tree_name + -- @return error message (if status is false) + Ping = function(resp) + local data = resp:getData() + local len = #data + local pos + local result = {} + + if ( len < 40 ) then return false, "NCP Ping result too short" end + + pos, result.nds_version = bin.unpack("C", data) + -- move to the offset of the + pos = pos + 7 + pos, result.tree_name = bin.unpack("A32", data, pos) + + result.tree_name = (result.tree_name:match("^([^_]*)_*$")) + + return true, result + end, + + --- Decodes a EnumerateNetworkAddress response + -- @param resp string containing the response as received from the server + -- @return status true on success, false on failure + -- @return response table (if status is true) containing: + -- ip, port and proto + -- @return error message (if status is false) + [NCPFunction.EnumerateNetworkAddress] = function(resp) + local pos, result = 1, {} + local items + local data = resp:getData() + local len = #data + + pos, result.time_since_boot, result.console_version, result.console_revision, + result.srvinfo_flags, result.guid, result.next_search, + items = bin.unpack("CCISS len ) then + return false, "EnumerateNetworkAddress packet too short" + end + + result.addr = {} + for i=1, items do + local addr = {} + pos, addr = DecodeAddress(data, pos) + table.insert(result.addr, addr ) + end + return true, result + end, + + + --- Decodes a Resolve response + -- @param resp string containing the response as received from the server + -- @return status true on success, false on failure + -- @return response table (if status is true) containing: + -- tag and id + -- @return error message (if status is false) + Resolve = function(resp) + local data = resp:getData() + local len = #data + + if ( len < 12 ) then + return false, "ResponseParser: NCP Resolve, packet too short" + end + + local pos, frag_size, frag_handle, comp_code = bin.unpack("EntryDecoder + -- @return error message (if status is false) + Search = function(resp) + local data = resp:getData() + local len = #data + local entries = {} + + if ( len < 12 ) then + return false, "ResponseParser: NCP Resolve, packet too short" + end + + local pos, frag_size, frag_handle, comp_code, iter_handle = bin.unpack("flags + -- mod_time + -- sub_count + -- baseclass + -- rdn + -- name + EntryDecoder = function(data, pos) + + -- The InfoFlags class takes a numeric value and facilitates + -- bit decoding into InfoFlag fields, the current supported fields + -- are: + -- Output + -- Entry + -- Count + -- ModTime + -- BaseClass + -- RelDN + -- DN + local InfoFlags = { + -- Creates a new instance + -- @param val number containing the numeric representation of flags + -- @return a new instance of InfoFlags + new = function(self, val) + local o = {} + setmetatable(o, self) + self.__index = self + o.val = val + o:parse() + return o + end, + + -- Parses the numeric value and creates a number of class fields + parse = function(self) + local fields = { "Output", "_u1", "Entry", "Count", "ModTime", + "_u2", "_u3", "_u4", "_u5", "_u6", "_u7", "BaseClass", + "RelDN", "DN" } + local bits = 1 + for _, field in ipairs(fields) do + self[field] = ( bit.band(self.val, bits) == bits ) + bits = bits * 2 + end + end + } + + local entry = {} + local f, len + pos, f = bin.unpack("EntryDecoder + -- @return error message (if status is false) + List = function(resp) + local data = resp:getData() + local len = #data + + if ( len < 12 ) then + return false, "ResponseParser: NCP Resolve, packet too short" + end + + local pos, frag_size, frag_handle, comp_code, iter_handle = bin.unpack("IISCCSCC", self.header) + + if ( self.data ) then + local len = #self.data - pos + if ( ( #self.data - pos ) ~= ( self.length - 33 ) ) then + stdnse.print_debug("NCP packet length mismatched") + return + end + end + end, + + --- Gets the sequence number + -- @return seqno number + getSeqNo = function(self) return self.seqno end, + + --- Gets the connection number + -- @return conn number + getConnNo = function(self) return self.conn end, + + --- Gets the data portion of the response + -- @return data string + getData = function(self) return self.data end, + + --- Gets the header portion of the response + getHeader = function(self) return self.header end, + + --- Returns true if there are any errors + -- @return error true if the response error code is anything else than OK + hasErrors = function(self) + return not( ( self.compl_code == Status.COMPLETION_OK ) and + ( self.status_code == Status.CONNECTION_OK ) ) + + end, + + --- Creates a Response instance from the data read of the socket + -- @param socket socket connected to server and ready to receive data + -- @return Response containing a new Response instance + fromSocket = function(socket) + local status, header = socket:recv(16) + if ( not(status) ) then return false, "Failed to receive data" end + + local pos, sig, len = bin.unpack(">II", header) + if ( len < 8 ) then return false, "NCP packet too short" end + + local data + + if ( 0 < len - 16 ) then + status, data = socket:recv(len - 16) + if ( not(status) ) then return false, "Failed to receive data" end + end + return true, Response:new(header, data) + end, + + --- "Serializes" the Response instance to a string + __tostring = function(self) + return bin.pack("AA", self.header, self.data) + end, + +} + +-- The NCP class +NCP = { + + --- Creates a new NCP instance + -- @param socket containing a socket connected to the NCP server + -- @return o instance of NCP + new = function(self, socket) + local o = {} + setmetatable(o, self) + self.__index = self + o.socket = socket + o.seqno = -1 + o.conn = 0 + return o + end, + + --- Handles sending and receiving a NCP message + -- @param p Packet containing the request to send to the server + -- @return status true on success false on failure + -- @return response table (if status is true) containing the parsed + -- response + -- @return error string (if status is false) containing the error + Exch = function(self, p) + local status, err = self:SendPacket(p) + if ( not(status) ) then return status, err end + + local status, resp = Response.fromSocket(self.socket) + if ( not(status) or resp:hasErrors() ) then return false, resp end + + self.seqno = resp:getSeqNo() + self.conn = resp:getConnNo() + + return ResponseParser.parse(p, resp) + end, + + --- Sends a packet to the server + -- @param p Packet to be sent to the server + -- @return status true on success, false on failure + -- @return err string containing the error message on failure + SendPacket = function(self, p) + if ( not(p:getSeqNo() ) ) then p:setSeqNo(self.seqno + 1) end + if ( not(p:getConnNo() ) ) then p:setConnNo(self.conn) end + + if ( not(p:getNCPLength()) ) then + local len = #(tostring(p)) + p:setNCPLength(len) + end + + local status, err = self.socket:send(tostring(p)) + if ( not(status) ) then return status, "Failed to send data" end + + return true + end, + + --- Creates a connection to the NCP server + -- @return status true on success, false on failure + CreateConnect = function(self) + local p = Packet:new() + p:setType(NCPType.CreateConnection) + + local resp = self:Exch( p ) + return true + end, + + --- Destroys a connection established with the NCP server + -- @return status true on success, false on failure + DestroyConnect = function(self) + local p = Packet:new() + p:setType(NCPType.DestroyConnection) + + local resp = self:Exch( p ) + return true + end, + + --- Gets file server information + -- @return status true on success, false on failure + -- @return response table (if status is true) containing: + -- srvname + -- os_major + -- os_minor + -- conns_supported + -- conns_inuse + -- vols_supported + -- os_rev + -- sft_support + -- tts_level + -- conns_max_use + -- acct_version + -- vap_version + -- qms_version + -- print_version + -- internet_bridge_ver + -- mixed_mode_path + -- local_login_info + -- product_major + -- product_minor + -- product_rev + -- os_lang_id + -- support_64_bit + -- @return error message (if status is false) + GetFileServerInfo = function(self) + local p = Packet:new() + p:setType(NCPType.ServiceRequest) + p:setFunc(NCPFunction.GetFileServerInfo) + p:setNCPReplyBuf(128) + p:setLength(1) + p:setSubFunc(17) + return self:Exch( p ) + end, + + + -- NEEDS authentication, disabled for now + -- + -- Get the logged on user for the specified connection + -- @param conn_no number containing the connection number + -- GetStationLoggedInfo = function(self, conn_no) + -- local p = Packet:new() + -- p:setType(NCPType.ServiceRequest) + -- p:setFunc(NCPFunction.GetFileServerInfo) + -- p:setNCPReplyBuf(62) + -- p:setLength(5) + -- p:setSubFunc(28) + -- p:setTask(4) + -- + -- local data = bin.pack("tree_name + -- @return error message (if status is false) + Ping = function(self) + local p = Packet:new() + p:setType(NCPType.ServiceRequest) + p:setFunc(NCPFunction.Ping) + p:setSubFunc(1) + p:setNCPReplyBuf(45) + p:setData("\0\0\0") + + return self:Exch( p ) + end, + + --- Enumerates the IP addresses associated with the server + -- @return status true on success, false on failure + -- @return response table (if status is true) containing: + -- ip, port and proto + -- @return error message (if status is false) + EnumerateNetworkAddress = function(self) + local p = Packet:new() + p:setType(NCPType.ServiceRequest) + p:setFunc(NCPFunction.EnumerateNetworkAddress) + p:setSubFunc(17) + p:setNCPReplyBuf(4096) + p:setData("\0\0\0\0") + p:setLength(5) + return self:Exch( p ) + end, + + --- Resolves an directory entry id from a name + -- @param name string containing the name to resolve + -- @return status true on success, false on failure + -- @return response table (if status is true) containing: + -- tag and id + -- @return error message (if status is false) + ResolveName = function(self, name) + local p = Packet:new() + p:setType(NCPType.ServiceRequest) + p:setFunc(NCPFunction.SendFragmentedRequest) + p:setSubFunc(2) + p:setNCPReplyBuf(4108) + + local pad = (4 - ( #name % 4 ) ) + name = Util.ZeroPad(name, #name + pad) + + local w_name = Util.ToWideChar(name) + local frag_handle, frag_size = 0xffffffff, 64176 + local msg_size, unknown, proto_flags, nds_verb = 44 + #w_name, 0, 0, 1 + local nds_reply_buf, version, flags, scope = 4096, 1, 0x2062, 0 + local unknown2 = 0x0e + local ZERO = 0 + + local data = bin.pack("vol_no and vol_name + -- @return error message (if status is false) + GetMountVolumeList = function(self) + local p = Packet:new() + p:setType(NCPType.ServiceRequest) + p:setFunc(NCPFunction.GetMountVolumeList) + p:setSubFunc(52) + p:setNCPReplyBuf(538) + p:setTask(4) + p:setLength(12) + + local start_vol = 0 + local vol_req_flags = 1 + local src_name_space = 0 + + local data = bin.pack("Resolve + -- @param class string containing a class name (or * wildcard) + -- @param name string containing a entry name (or * wildcard) + -- @param options table containing one or more of the following + -- numobjs + -- @return status true on success false on failure + -- @return entries table (if status is true) as return by: + -- ResponseDecoder.EntryDecoder + -- @return error string (if status is false) containing the error + Search = function(self, base, class, name, options) + assert( ( base and base.id ), "No base entry was specified") + + local class = class and class .. '\0' or '*\0' + local name = name and name .. '\0' or '*\0' + local w_name = Util.ToWideChar(name) + local w_class = Util.ToWideChar(class) + local options = options or {} + local p = Packet:new() + p:setType(NCPType.ServiceRequest) + p:setFunc(NCPFunction.SendFragmentedRequest) + p:setSubFunc(2) + p:setNCPReplyBuf(64520) + p:setTask(5) + + local frag_handle, frag_size, msg_size = 0xffffffff, 64176, 98 + local unknown, proto_flags, nds_verb, version, flags = 0, 0, 6, 3, 0 + local nds_reply_buf = 64520 + local iter_handle = 0xffffffff + local repl_type = 2 -- base and all subordinates + local numobjs = options.numobjs or 0 + local info_types = 1 -- Names + local info_flags = 0x0000381d + -- a bunch of unknowns + local u2, u3, u4, u5, u6, u7, u8, u9 = 0, 0, 2, 2, 0, 0x10, 0, 0x11 + + local data = bin.pack("Resolve + -- @return status true on success false on failure + -- @return entries table (if status is true) as return by: + -- ResponseDecoder.EntryDecoder + -- @return error string (if status is false) containing the error + List = function(self, entry) + local p = Packet:new() + p:setType(NCPType.ServiceRequest) + p:setFunc(NCPFunction.SendFragmentedRequest) + p:setSubFunc(2) + p:setNCPReplyBuf(4112) + p:setTask(2) + + local frag_handle, frag_size = 0xffffffff, 64176 + local msg_size, unknown, proto_flags, nds_verb = 40, 0, 0, 5 + local nds_reply_buf, version, flags = 4100, 1, 0x0001 + local iter_handle = 0xffffffff + local unknown2 = 0x0e + local ZERO = 0 + local info_flags = 0x0000381d + + local data = bin.pack("numobjs - number of objects to limit the search to + search = function(self, base, class, name, options) + local base = base or "[Root]" + local status, entry = self.ncp:ResolveName(base) + + if ( not(status) ) then + return false, "Search failed, base could not be resolved" + end + + local status, result = self.ncp:Search(entry, class, name, options) + if (not(status)) then return false, result end + + return status, result + end, + + --- Retrieves some information from the server using the following NCP + -- functions: + -- GetFileServerInfo + -- Ping + -- EnumerateNetworkAddress + -- GetMountVolumeList + -- The result contains the Tree name, product versions and mounts + getServerInfo = function(self) + local status, srv_info = self.ncp:GetFileServerInfo() + if ( not(status) ) then return false, srv_info end + + local status, ping_info = self.ncp:Ping() + if ( not(status) ) then return false, ping_info end + + local status, net_info = self.ncp:EnumerateNetworkAddress() + if ( not(status) ) then return false, net_info end + + local status, mnt_list = self.ncp:GetMountVolumeList() + if ( not(status) ) then return false, mnt_list end + + local output = {} + table.insert(output, ("Server name: %s"):format(srv_info.srvname)) + table.insert(output, ("Tree Name: %s"):format(ping_info.tree_name)) + table.insert(output, + ("OS Version: %d.%d (rev %d)"):format(srv_info.os_major, + srv_info.os_minor, srv_info.os_rev)) + table.insert(output, + ("Product version: %d.%d (rev %d)"):format(srv_info.product_major, + srv_info.product_minor, srv_info.product_rev)) + table.insert(output, ("OS Language ID: %d"):format(srv_info.os_lang_id)) + + local niceaddr = {} + for _, addr in ipairs(net_info.addr) do + table.insert(niceaddr, ("%s %d/%s"):format(addr.ip,addr.port, + addr.proto)) + end + + niceaddr.name = "Addresses" + table.insert(output, niceaddr) + + local mounts = {} + for _, mount in ipairs(mnt_list) do + table.insert(mounts, mount.vol_name) + end + + mounts.name = "Mounts" + table.insert(output, mounts) + + if ( nmap.debugging() > 0 ) then + table.insert(output, ("Acct version: %d"):format(srv_info.acct_version)) + table.insert(output, ("VAP version: %d"):format(srv_info.vap_version)) + table.insert(output, ("QMS version: %d"):format(srv_info.qms_version)) + table.insert(output, + ("Print server version: %d"):format(srv_info.print_version)) + table.insert(output, + ("Virtual console version: %d"):format(srv_info.virt_console_ver)) + table.insert(output, + ("Security Restriction Version: %d"):format(srv_info.sec_restrict_ver)) + table.insert(output, + ("Internet Bridge Version: %d"):format(srv_info.internet_bridge_ver)) + end + + return true, output + end, +} + +Socket = +{ + new = function(self) + local o = {} + setmetatable(o, self) + self.__index = self + o.Socket = nmap.new_socket() + o.Buffer = nil + return o + end, + + --- Sets the socket timeout (@see nmap.set_timeout) + -- @param tm number containing the socket timeout in ms + set_timeout = function(self, tm) self.Socket:set_timeout(tm) end, + + --- Establishes a connection. + -- + -- @param hostid Hostname or IP address. + -- @param port Port number. + -- @param protocol "tcp", "udp", or + -- @return Status (true or false). + -- @return Error code (if status is false). + connect = function( self, hostid, port, protocol ) + self.Socket:set_timeout(5000) + return self.Socket:connect( hostid, port, protocol ) + end, + + --- Closes an open connection. + -- + -- @return Status (true or false). + -- @return Error code (if status is false). + close = function( self ) + return self.Socket:close() + end, + + --- Opposed to the socket:receive_bytes function, that returns + -- at least x bytes, this function returns the amount of bytes requested. + -- + -- @param count of bytes to read + -- @return true on success, false on failure + -- @return data containing bytes read from the socket + -- err containing error message if status is false + recv = function( self, count ) + local status, data + + self.Buffer = self.Buffer or "" + + if ( #self.Buffer < count ) then + status, data = self.Socket:receive_bytes( count - #self.Buffer ) + if ( not(status) or #data < count - #self.Buffer ) then + return false, data + end + self.Buffer = self.Buffer .. data + end + + data = self.Buffer:sub( 1, count ) + self.Buffer = self.Buffer:sub( count + 1) + + return true, data + end, + + --- Sends data over the socket + -- + -- @return Status (true or false). + -- @return Error code (if status is false). + send = function( self, data ) + return self.Socket:send( data ) + end, +} + +--- "static" Utility class containing mostly conversion functions +Util = +{ + --- Converts a string to a wide string + -- + -- @param str string to be converted + -- @return string containing a two byte representation of str where a zero + -- byte character has been tagged on to each character. + ToWideChar = function( str ) + return str:gsub("(.)", "%1" .. string.char(0x00) ) + end, + + + --- Concerts a wide string to string + -- + -- @param wstr containing the wide string to convert + -- @return string with every other character removed + FromWideChar = function( wstr ) + local str = "" + if ( nil == wstr ) then return nil end + for i=1, wstr:len(), 2 do str = str .. wstr:sub(i, i) end + return str + end, + + --- Pads a string with zeroes + -- + -- @param str string containing the string to be padded + -- @param len number containing the length of the new string + -- @return str string containing the new string + ZeroPad = function( str, len ) + if len < str:len() then return end + for i=1, len - str:len() do str = str .. string.char(0) end + return str + end, + + -- Removes trailing nulls + -- + -- @param str containing the string + -- @return ret the string with any trailing nulls removed + CToLuaString = function( str ) + local ret + + if ( not(str) ) then return "" end + if ( str:sub(-1, -1 ) ~= "\0" ) then return str end + + for i=1, #str do + if ( str:sub(-i,-i) == "\0" ) then + ret = str:sub(1, -i - 1) + else + break + end + end + return ret + end, + +} \ No newline at end of file diff --git a/scripts/ncp-enum-users.nse b/scripts/ncp-enum-users.nse new file mode 100644 index 000000000..d07dfe7d8 --- /dev/null +++ b/scripts/ncp-enum-users.nse @@ -0,0 +1,51 @@ +description = [[ +Retrieves a list of all eDirectory users from the NCP service +]] + +--- +-- +--@output +-- PORT STATE SERVICE REASON +-- 524/tcp open ncp syn-ack +-- | ncp-enum-users: +-- | CN=admin.O=cqure +-- | CN=cawi.OU=finance.O=cqure +-- | CN=linux-l84tadmin.O=cqure +-- | CN=nist.OU=hr.O=cqure +-- | CN=novlxregd.O=cqure +-- | CN=novlxsrvd.O=cqure +-- | CN=OESCommonProxy_linux-l84t.O=cqure +-- | CN=sasi.OU=hr.O=cqure +-- |_ CN=wwwrun.O=cqure +-- + +-- Version 0.1 +-- Created 04/26/2011 - v0.1 - created by Patrik Karlsson + +author = "Patrik Karlsson" +license = "Same as Nmap--See http://nmap.org/book/man-legal.html" +categories = {"discovery", "safe"} + +require 'shortport' +require 'ncp' + +portrule = shortport.port_or_service(524, "ncp", "tcp") + +action = function(host, port) + local helper = ncp.Helper:new(host,port) + + local status, resp = helper:connect() + if ( not(status) ) then return stdnse.format_output(false, resp) end + + status, resp = helper:search("[Root]", "User", "*") + if ( not(status) ) then return stdnse.format_output(false, resp) end + + local output = {} + + for _, entry in ipairs(resp) do + table.insert(output, entry.name) + end + + return stdnse.format_output(true, output) +end + diff --git a/scripts/ncp-serverinfo.nse b/scripts/ncp-serverinfo.nse new file mode 100644 index 000000000..f299eb3ee --- /dev/null +++ b/scripts/ncp-serverinfo.nse @@ -0,0 +1,48 @@ +description = [[ +Gets NCP Server Information +]] + +--- +-- +--@output +-- PORT STATE SERVICE +-- 524/tcp open ncp +-- | ncp-serverinfo: +-- | Server name: LINUX-L84T +-- | Tree Name: IIT-LABTREE +-- | OS Version: 5.70 (rev 7) +-- | Product version: 6.50 (rev 7) +-- | OS Language ID: 4 +-- | Addresses +-- | 10.0.200.33 524/udp +-- | 10.0.200.33 524/tcp +-- | Mounts +-- | SYS +-- | ADMIN +-- |_ _ADMIN + +-- Version 0.1 +-- Created 04/26/2011 - v0.1 - created by Patrik Karlsson + +author = "Patrik Karlsson" +license = "Same as Nmap--See http://nmap.org/book/man-legal.html" +categories = {"discovery", "safe"} + +require "shortport" +require "ncp" + +portrule = shortport.port_or_service(524, "ncp", "tcp") + +action = function(host, port) + local helper = ncp.Helper:new(host,port) + + local status, resp = helper:connect() + if ( not(status) ) then return stdnse.format_output(false, resp) end + + status, resp = helper:getServerInfo() + if ( not(status) ) then return stdnse.format_output(false, resp) end + + helper:close() + + return stdnse.format_output(true, resp) +end diff --git a/scripts/script.db b/scripts/script.db index a5ed856db..df78684c5 100644 --- a/scripts/script.db +++ b/scripts/script.db @@ -113,6 +113,8 @@ Entry { filename = "mysql-users.nse", categories = { "discovery", "intrusive", } Entry { filename = "mysql-variables.nse", categories = { "discovery", "intrusive", } } Entry { filename = "nat-pmp-info.nse", categories = { "default", "discovery", "safe", } } Entry { filename = "nbstat.nse", categories = { "default", "discovery", "safe", } } +Entry { filename = "ncp-enum-users.nse", categories = { "discovery", "safe", } } +Entry { filename = "ncp-serverinfo.nse", categories = { "discovery", "safe", } } Entry { filename = "netbus-auth-bypass.nse", categories = { "auth", "safe", "vuln", } } Entry { filename = "netbus-brute.nse", categories = { "auth", "intrusive", } } Entry { filename = "netbus-info.nse", categories = { "default", "discovery", "safe", } }