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Use the same endianness for IP ID and DHCP transaction ID

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nnposter
2022-04-24 02:07:22 +00:00
parent e73041f34b
commit 35b543b291
1 changed files with 2 additions and 2 deletions
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4
scripts/broadcast-dhcp-discover.nse
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@@ -147,7 +147,7 @@ local function dhcp_listener(sock, iface, macaddr, timeout, xid, result)
-- Create a frame and add the IP header
local frame = packet.Frame:new()
frame:build_ip_packet(srcip, dstip, pkt, nil, --dsf
string.unpack("<I2", xid), -- IPID, use 16 lsb of xid
string.unpack(">I2", xid, 3), -- IPID, use 16 lsb of xid
nil, nil, nil, -- flags, offset, ttl
packet.IPPROTO_UDP)
@@ -232,7 +232,7 @@ action = function()
-- start a listening thread for each interface
for iface, _ in pairs(interfaces) do
transaction_id = transaction_id + 1
local xid = string.pack("<I4", transaction_id)
local xid = string.pack(">I4", transaction_id)
local sock, co
sock = nmap.new_socket()