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Fix a packet check: command should be Response, need 'or' not 'and'

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This commit is contained in:
dmiller
2018-09-06 14:20:32 +00:00
parent c2ac2856d3
commit c0fd9f3257
1 changed files with 8 additions and 8 deletions
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16
scripts/broadcast-rip-discover.nse
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@@ -1,7 +1,7 @@
local bin = require "bin"
local ipOps = require "ipOps"
local nmap = require "nmap"
local stdnse = require "stdnse"
local string = require "string"
local tab = require "tab"
local table = require "table"
@@ -90,7 +90,7 @@ RIPv2 = {
-- RIPv2 stuff, should be 0 for RIPv1
local tag, subnet, nexthop = 0, 0, 0
local data = bin.pack(">CCSSSIIII",
local data = string.pack(">BB I2 I2 I2 I4 I4 I4 I4",
self.command, self.version, self.domain, self.family, self.tag,
self.address, self.subnet, self.nexthop, self.metric)
@@ -112,9 +112,9 @@ RIPv2 = {
if ( not(data) or #data < 3 ) then
return
end
local pos
pos, o.command, o.version = bin.unpack(">CCS", data)
if ( o.command ~= RIPv2 and o.version ~= 2 ) then
local pos, _
o.command, o.version, _, pos = string.unpack(">BBI2", data)
if ( o.command ~= RIPv2.Command.Response or o.version ~= 2 ) then
return
end
@@ -122,9 +122,9 @@ RIPv2 = {
tab.addrow(routes, "ip", "netmask", "nexthop", "metric")
while( #data - pos >= 20 ) do
local family, address, metric, _, netmask, nexthop
pos, family, _, address, netmask, nexthop,
metric = bin.unpack(">SSIIII", data, pos)
local family, address, metric, netmask, nexthop
family, _, address, netmask, nexthop,
metric, pos = string.unpack(">I2 I2 I4 I4 I4 I4", data, pos)
if ( family == RIPv2.AddressFamily.IP ) then
local ip = ipOps.fromdword(address)