1
0
mirror of https://github.com/nmap/nmap.git synced 2025-12-28 18:39:03 +00:00

Final re-indent for scripts.

This commit is contained in:
dmiller
2014-02-02 15:33:39 +00:00
parent d309fecd12
commit 31a2c432e1
43 changed files with 10426 additions and 10426 deletions

View File

@@ -82,345 +82,345 @@ all_results = {}
-- get time (in miliseconds) when the script should finish
local function get_end_time()
local t = nmap.timing_level()
local limit = stdnse.parse_timespec(stdnse.get_script_args('dns-nsec3-enum.timelimit') or "30m")
local end_time = 1000 * limit + nmap.clock_ms()
return end_time
local t = nmap.timing_level()
local limit = stdnse.parse_timespec(stdnse.get_script_args('dns-nsec3-enum.timelimit') or "30m")
local end_time = 1000 * limit + nmap.clock_ms()
return end_time
end
local function remove_empty(t)
local result = {}
for _, v in ipairs(t) do
if v ~= "" then
result[#result + 1] = v
end
end
return result
local result = {}
for _, v in ipairs(t) do
if v ~= "" then
result[#result + 1] = v
end
end
return result
end
local function split(domain)
return stdnse.strsplit("%.", domain)
return stdnse.strsplit("%.", domain)
end
local function join(components)
return stdnse.strjoin(".", remove_empty(components))
return stdnse.strjoin(".", remove_empty(components))
end
-- Remove the first component of a domain name. Return nil if the number of
-- components drops below min_length (default 0).
local function remove_component(domain, min_length)
local components
local components
min_length = min_length or 0
components = split(domain)
if #components < min_length then
return nil
end
table.remove(components, 1)
min_length = min_length or 0
components = split(domain)
if #components < min_length then
return nil
end
table.remove(components, 1)
return join(components)
return join(components)
end
-- Guess the domain given a host. Return nil on failure. This function removes
-- a domain name component unless the name would become shorter than 2
-- components.
local function guess_domain(host)
local name
local components
local name
local components
name = stdnse.get_hostname(host)
if name and name ~= host.ip then
return remove_component(name, 2) or name
else
return nil
end
name = stdnse.get_hostname(host)
if name and name ~= host.ip then
return remove_component(name, 2) or name
else
return nil
end
end
-- Remove a suffix from a domain (to isolate a subdomain from its parent).
local function remove_suffix(domain, suffix)
local dc, sc
local dc, sc
dc = split(domain)
sc = split(suffix)
while #dc > 0 and #sc > 0 and dc[#dc] == sc[#sc] do
dc[#dc] = nil
sc[#sc] = nil
end
dc = split(domain)
sc = split(suffix)
while #dc > 0 and #sc > 0 and dc[#dc] == sc[#sc] do
dc[#dc] = nil
sc[#sc] = nil
end
return join(dc), join(sc)
return join(dc), join(sc)
end
-- Return the subset of authoritative records with the given label.
local function auth_filter(retPkt, label)
local result = {}
local result = {}
for _, rec in ipairs(retPkt.auth) do
if rec[label] then
result[#result + 1] = rec[label]
end
end
for _, rec in ipairs(retPkt.auth) do
if rec[label] then
result[#result + 1] = rec[label]
end
end
return result
return result
end
local function empty(t)
return not next(t)
return not next(t)
end
local function random_string()
return msrpc.random_crap(8,"etaoinshrdlucmfw")
return msrpc.random_crap(8,"etaoinshrdlucmfw")
end
-- generate a random hash with domains suffix
-- return both domain and it's hash
local function generate_hash(domain, iter, salt)
local rand_str = random_string()
local random_domain = rand_str .. "." .. domain
local packed_domain = ""
for word in string.gmatch(domain,"[^%.]+") do
packed_domain = packed_domain .. bin.pack("c",string.len(word)) .. word
end
local to_hash = bin.pack("c",string.len(rand_str)) .. rand_str .. packed_domain .. bin.pack("c",0) .. bin.pack("H",salt)
iter = iter - 1
local hash = openssl.sha1(to_hash)
for i=0,iter do
hash = hash .. bin.pack("H",salt)
hash = openssl.sha1(hash)
end
return string.lower(base32.enc(hash,true)), random_domain
local rand_str = random_string()
local random_domain = rand_str .. "." .. domain
local packed_domain = ""
for word in string.gmatch(domain,"[^%.]+") do
packed_domain = packed_domain .. bin.pack("c",string.len(word)) .. word
end
local to_hash = bin.pack("c",string.len(rand_str)) .. rand_str .. packed_domain .. bin.pack("c",0) .. bin.pack("H",salt)
iter = iter - 1
local hash = openssl.sha1(to_hash)
for i=0,iter do
hash = hash .. bin.pack("H",salt)
hash = openssl.sha1(hash)
end
return string.lower(base32.enc(hash,true)), random_domain
end
-- convenience function , returns size of a table
local function table_size(tbl)
local numItems = 0
for k,v in pairs(tbl) do
numItems = numItems + 1
end
return numItems
local numItems = 0
for k,v in pairs(tbl) do
numItems = numItems + 1
end
return numItems
end
-- convenience function , return first item in a table
local function get_first(tbl)
for k,v in pairs(tbl) do
return k,v
end
for k,v in pairs(tbl) do
return k,v
end
end
-- queries the domain and parses the results
-- returns the list of new ranges
local function query_for_hashes(host,subdomain,domain)
local status
local result
local ranges = {}
status, result = dns.query(subdomain, {host = host.ip, dtype='NSEC3', retAll=true, retPkt=true, dnssec=true})
if status then
for _, nsec3 in ipairs(auth_filter(result, "NSEC3")) do
local h1 = string.lower(remove_suffix(nsec3.dname,domain))
local h2 = string.lower(nsec3.hash.base32)
if not stdnse.contains(all_results,"nexthash " .. h1 .. " " .. h2) then
table.insert(all_results, "nexthash " .. h1 .. " " .. h2)
stdnse.print_debug("nexthash " .. h1 .. " " .. h2)
end
ranges[h1] = h2
end
else
stdnse.print_debug(1, "DNS error: %s", result)
end
return ranges
local status
local result
local ranges = {}
status, result = dns.query(subdomain, {host = host.ip, dtype='NSEC3', retAll=true, retPkt=true, dnssec=true})
if status then
for _, nsec3 in ipairs(auth_filter(result, "NSEC3")) do
local h1 = string.lower(remove_suffix(nsec3.dname,domain))
local h2 = string.lower(nsec3.hash.base32)
if not stdnse.contains(all_results,"nexthash " .. h1 .. " " .. h2) then
table.insert(all_results, "nexthash " .. h1 .. " " .. h2)
stdnse.print_debug("nexthash " .. h1 .. " " .. h2)
end
ranges[h1] = h2
end
else
stdnse.print_debug(1, "DNS error: %s", result)
end
return ranges
end
-- does the actuall enumeration
local function enum(host, port, domain)
local seen, seen_subdomain = {}, {}
local ALG ={}
ALG[1] = "SHA-1"
local todo = {}
local dnssec, status, result = false, false, "No Answer"
local result = {}
local subdomain = msrpc.random_crap(8,"etaoinshrdlucmfw")
local full_domain = join({subdomain, domain})
local iter
local salt
local end_time = get_end_time()
local seen, seen_subdomain = {}, {}
local ALG ={}
ALG[1] = "SHA-1"
local todo = {}
local dnssec, status, result = false, false, "No Answer"
local result = {}
local subdomain = msrpc.random_crap(8,"etaoinshrdlucmfw")
local full_domain = join({subdomain, domain})
local iter
local salt
local end_time = get_end_time()
-- do one query to determine the hash and if DNSSEC is actually used
status, result = dns.query(full_domain, {host = host.ip, dtype='NSEC3', retAll=true, retPkt=true, dnssec=true})
if status then
local is_nsec3 = false
for _, nsec3 in ipairs(auth_filter(result, "NSEC3")) do -- parse the results and add initial ranges
is_nsec3 = true
dnssec = true
iter = nsec3.iterations
salt = nsec3.salt.hex
local h1 = string.lower(remove_suffix(nsec3.dname,domain))
local h2 = string.lower(nsec3.hash.base32)
if table_size(todo) == 0 then
table.insert(all_results, "domain " .. domain)
stdnse.print_debug("domain " .. domain)
table.insert(all_results, "salt " .. salt)
stdnse.print_debug("salt " .. salt)
table.insert(all_results, "iterations " .. iter)
stdnse.print_debug("iterations " .. iter)
if h1 < h2 then
todo[h2] = h1
else
todo[h1] = h2
end
else
for b,a in pairs(todo) do
if h1 == b and h2 == a then -- h2:a b:h1 case
todo[b] = nil
break
end
if h1 == b and h2 > h1 then -- a b:h1 h2 case
todo[b] = nil
todo[h2] = a
break
end
if h1 == b and h2 < a then -- h2 a b:h1
todo[b] = nil
todo[b] = h2
break
end
if h1 > b then -- a b h1 h2
todo[b] = nil
todo[b] = h1
todo[h2] = a
break
end
if h1 < a then -- h1 h2 a b
todo[b] = nil
todo[b] = h1
todo[h2] = a
break
end
end -- for
end -- else
table.insert(all_results, "nexthash " .. h1 .. " " .. h2)
stdnse.print_debug("nexthash " .. h1 .. " " .. h2)
end
end
-- do one query to determine the hash and if DNSSEC is actually used
status, result = dns.query(full_domain, {host = host.ip, dtype='NSEC3', retAll=true, retPkt=true, dnssec=true})
if status then
local is_nsec3 = false
for _, nsec3 in ipairs(auth_filter(result, "NSEC3")) do -- parse the results and add initial ranges
is_nsec3 = true
dnssec = true
iter = nsec3.iterations
salt = nsec3.salt.hex
local h1 = string.lower(remove_suffix(nsec3.dname,domain))
local h2 = string.lower(nsec3.hash.base32)
if table_size(todo) == 0 then
table.insert(all_results, "domain " .. domain)
stdnse.print_debug("domain " .. domain)
table.insert(all_results, "salt " .. salt)
stdnse.print_debug("salt " .. salt)
table.insert(all_results, "iterations " .. iter)
stdnse.print_debug("iterations " .. iter)
if h1 < h2 then
todo[h2] = h1
else
todo[h1] = h2
end
else
for b,a in pairs(todo) do
if h1 == b and h2 == a then -- h2:a b:h1 case
todo[b] = nil
break
end
if h1 == b and h2 > h1 then -- a b:h1 h2 case
todo[b] = nil
todo[h2] = a
break
end
if h1 == b and h2 < a then -- h2 a b:h1
todo[b] = nil
todo[b] = h2
break
end
if h1 > b then -- a b h1 h2
todo[b] = nil
todo[b] = h1
todo[h2] = a
break
end
if h1 < a then -- h1 h2 a b
todo[b] = nil
todo[b] = h1
todo[h2] = a
break
end
end -- for
end -- else
table.insert(all_results, "nexthash " .. h1 .. " " .. h2)
stdnse.print_debug("nexthash " .. h1 .. " " .. h2)
end
end
-- find hash that falls into one of the ranges and query for it
while table_size(todo) > 0 and nmap.clock_ms() < end_time do
local hash
hash, subdomain = generate_hash(domain,iter,salt)
local queried = false
for a,b in pairs(todo) do
if a == b then
todo[a] = nil
break
end
if a < b then -- [] range
if hash > a and hash < b then
-- do the query
local hash_pairs = query_for_hashes(host,subdomain,domain)
queried = true
local changed = false
for h1,h2 in pairs(hash_pairs) do
if h1 == a and h2 == b then -- h1:a h2:b case
todo[a] = nil
changed = true
end
if h1 == a then -- h1:a h2 b case
todo[a] = nil
todo[h2] = b
changed = true
end
if h2 == b then -- a h1 bh:2 case
todo[a] = nil
todo[a] = h1
changed = true
end
if h1 > a and h2 < b then -- a h1 h2 b case
todo[a] = nil
todo[a] = h1
todo[h2] = b
changed = true
end
end
-- if changed then
-- stdnse.print_debug("break[]")
--break
-- end
end
elseif a > b then -- ][ range
if hash > a or hash < b then
local hash_pairs = query_for_hashes(host,subdomain,domain)
queried = true
local changed = false
for h1,h2 in pairs(hash_pairs) do
if h1 == a and h2 == b then -- h2:b a:h1 case
todo[a] = nil
changed = true
end
if h1 == a and h2 > h1 then -- b a:h1 h2 case
todo[a] = nil
todo[h1] = b
changed = true
end
if h1 == a and h2 < b then -- h2 b a:h1 case
todo[a] = nil
todo[h2] = b
changed = true
end
if h1 > a and h2 > h1 then -- b a h1 h2 case
todo[a] = nil
todo[a] = h1
todo[h2] = b
changed = true
end
if h1 > a and h2 < b then -- h2 b a h1 case
todo[a] = nil
todo[a] = h1
todo[h2] = b
changed = true
end
if h1 < b then -- h1 h2 b a case
todo[a] = nil
todo[a] = h1
todo[h2] = b
changed = true
end
end
if changed then
--break
end
end
end
if queried then
break
end
end
end
return dnssec, status, all_results
-- find hash that falls into one of the ranges and query for it
while table_size(todo) > 0 and nmap.clock_ms() < end_time do
local hash
hash, subdomain = generate_hash(domain,iter,salt)
local queried = false
for a,b in pairs(todo) do
if a == b then
todo[a] = nil
break
end
if a < b then -- [] range
if hash > a and hash < b then
-- do the query
local hash_pairs = query_for_hashes(host,subdomain,domain)
queried = true
local changed = false
for h1,h2 in pairs(hash_pairs) do
if h1 == a and h2 == b then -- h1:a h2:b case
todo[a] = nil
changed = true
end
if h1 == a then -- h1:a h2 b case
todo[a] = nil
todo[h2] = b
changed = true
end
if h2 == b then -- a h1 bh:2 case
todo[a] = nil
todo[a] = h1
changed = true
end
if h1 > a and h2 < b then -- a h1 h2 b case
todo[a] = nil
todo[a] = h1
todo[h2] = b
changed = true
end
end
--if changed then
-- stdnse.print_debug("break[]")
--break
-- end
end
elseif a > b then -- ][ range
if hash > a or hash < b then
local hash_pairs = query_for_hashes(host,subdomain,domain)
queried = true
local changed = false
for h1,h2 in pairs(hash_pairs) do
if h1 == a and h2 == b then -- h2:b a:h1 case
todo[a] = nil
changed = true
end
if h1 == a and h2 > h1 then -- b a:h1 h2 case
todo[a] = nil
todo[h1] = b
changed = true
end
if h1 == a and h2 < b then -- h2 b a:h1 case
todo[a] = nil
todo[h2] = b
changed = true
end
if h1 > a and h2 > h1 then -- b a h1 h2 case
todo[a] = nil
todo[a] = h1
todo[h2] = b
changed = true
end
if h1 > a and h2 < b then -- h2 b a h1 case
todo[a] = nil
todo[a] = h1
todo[h2] = b
changed = true
end
if h1 < b then -- h1 h2 b a case
todo[a] = nil
todo[a] = h1
todo[h2] = b
changed = true
end
end
if changed then
--break
end
end
end
if queried then
break
end
end
end
return dnssec, status, all_results
end
action = function(host, port)
local output = {}
local domains
domains = stdnse.get_script_args('dns-nsec3-enum.domains')
if not domains then
domains = guess_domain(host)
end
if not domains then
return string.format("Can't determine domain for host %s; use %s.domains script arg.", host.ip, SCRIPT_NAME)
end
if type(domains) == 'string' then
domains = { domains }
end
local output = {}
local domains
domains = stdnse.get_script_args('dns-nsec3-enum.domains')
if not domains then
domains = guess_domain(host)
end
if not domains then
return string.format("Can't determine domain for host %s; use %s.domains script arg.", host.ip, SCRIPT_NAME)
end
if type(domains) == 'string' then
domains = { domains }
end
for _, domain in ipairs(domains) do
local dnssec, status, result = enum(host, port, domain)
if dnssec and type(result) == "table" then
output[#output + 1] = result
output[#output + 1] = "Total hashes found: " .. #result
for _, domain in ipairs(domains) do
local dnssec, status, result = enum(host, port, domain)
if dnssec and type(result) == "table" then
output[#output + 1] = result
output[#output + 1] = "Total hashes found: " .. #result
else
output[#output + 1] = "DNSSEC NSEC3 not supported"
end
end
return stdnse.format_output(true, output)
else
output[#output + 1] = "DNSSEC NSEC3 not supported"
end
end
return stdnse.format_output(true, output)
end