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How to implement hping3 SYN flood attack in ns3

To implement the hping3 SYN flood attack in ns3, we need to simulate when the attackers send the flood of SYN packets from the attackers’ nodes to the target node by use of sockets. We also offer the further interesting information about SYN Flood Attack performance in other mimicking tools.  Here we can see how to implement the hyping3 SYN flood attacks in ns3 simulation tool:

Step-by-Step Implementation:

  1. Set Up ns3 Environment:
    • Make certain ns3 is installed in the computer.
    • Download all the essential dependencies.
  2. Create a New ns3 Script:
    • Create a new script file in the scratch directory of ns3, e.g., syn_flood_attack.cc.
  3. Include Necessary Headers:
    • In the script conclude all the essential ns3 headers.
  4. Define Network Topology:
    • Set up a network topology that includes multiple attacker nodes and one victim node.
  5. Implement SYN Flood Attack Logic:
    • Use sockets to send a flood of SYN packets from the attacker nodes to the victim node.
  6. Enable Packet Capture:
    • Enable pcap tracing to capture packets for analysis with Wireshark.
  7. Run the Simulation:
    • Set the simulation time and run the simulation using Simulator::Run() and Simulator::Destroy().

Example:

Here, the below are instances on how to implement the SYN flood attacks in ns3:

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/point-to-point-module.h”

#include “ns3/applications-module.h”

#include “ns3/ipv4-header.h”

#include “ns3/tcp-header.h”

using namespace ns3;

NS_LOG_COMPONENT_DEFINE (“SynFloodAttack”);

void SendSynFlood (Ptr<Node> attackerNode, Ipv4Address victimAddress, uint16_t port, uint32_t packetSize, uint32_t numPackets, Time interval)

{

Ptr<Socket> socket = Socket::CreateSocket (attackerNode, TypeId::LookupByName (“ns3::Ipv4RawSocketFactory”));

socket->SetAttribute (“Protocol”, UintegerValue (6)); // TCP protocol number

Ipv4Header ipv4Header;

ipv4Header.SetDestination (victimAddress);

ipv4Header.SetSource (attackerNode->GetObject<Ipv4> ()->GetAddress (1, 0).GetLocal ());

ipv4Header.SetProtocol (6); // TCP protocol number

TcpHeader tcpHeader;

tcpHeader.SetFlags (TcpHeader::SYN);

tcpHeader.SetSourcePort (port);

tcpHeader.SetDestinationPort (port);

tcpHeader.SetSequenceNumber (SequenceNumber32 (0));

for (uint32_t i = 0; i < numPackets; ++i)

{

Ptr<Packet> packet = Create<Packet> (packetSize);

packet->AddHeader (tcpHeader);

packet->AddHeader (ipv4Header);

socket->Send (packet);

Simulator::Schedule (interval, &SendSynFlood, attackerNode, victimAddress, port, packetSize, numPackets, interval);

}

}

int main (int argc, char *argv[])

{

bool verbose = true;

uint32_t nAttackers = 3; // Number of attacker nodes

uint16_t port = 8080; // Target port for the attack

uint32_t packetSize = 100; // Size of SYN packet

uint32_t numPackets = 1000; // Number of packets to send

Time interval = Seconds (0.01); // Interval between packets

CommandLine cmd;

cmd.AddValue (“nAttackers”, “Number of attacker nodes”, nAttackers);

cmd.AddValue (“port”, “Target port for the attack”, port);

cmd.AddValue (“packetSize”, “Size of SYN packets”, packetSize);

cmd.AddValue (“numPackets”, “Number of SYN packets”, numPackets);

cmd.AddValue (“interval”, “Interval between SYN packets”, interval);

cmd.Parse (argc, argv);

if (verbose)

{

LogComponentEnable (“SynFloodAttack”, LOG_LEVEL_INFO);

}

NodeContainer nodes;

nodes.Create (nAttackers + 1); // nAttackers + 1 victim node

NodeContainer attackers;

for (uint32_t i = 0; i < nAttackers; ++i)

{

attackers.Add (nodes.Get (i));

}

Ptr<Node> victim = nodes.Get (nAttackers);

PointToPointHelper pointToPoint;

pointToPoint.SetDeviceAttribute (“DataRate”, StringValue (“5Mbps”));

pointToPoint.SetChannelAttribute (“Delay”, StringValue (“2ms”));

NetDeviceContainer devices;

for (uint32_t i = 0; i < nodes.GetN () – 1; ++i)

{

devices.Add (pointToPoint.Install (nodes.Get (i), nodes.Get (i + 1)));

}

InternetStackHelper stack;

stack.Install (nodes);

Ipv4AddressHelper address;

address.SetBase (“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces = address.Assign (devices);

// Install applications on victim node

UdpEchoServerHelper echoServer (port);

ApplicationContainer serverApps = echoServer.Install (victim);

serverApps.Start (Seconds (1.0));

serverApps.Stop (Seconds (10.0));

// Schedule SYN flood attack from each attacker node

for (uint32_t i = 0; i < attackers.GetN (); ++i)

{

Simulator::Schedule (Seconds (2.0), &SendSynFlood, attackers.Get (i), interfaces.GetAddress (nodes.GetN () – 1), port, packetSize, numPackets, interval);

}

// Enable packet capture

pointToPoint.EnablePcapAll (“syn_flood_attack”);

Simulator::Run ();

Simulator::Destroy ();

return 0;

}

Explanation:

At this direction, we provide the structured description process for SYN Flood Attack:

  1. Nodes and Links:
    • Created multiple attacker nodes and one victim node.
    • Configured point-to-point links between the nodes.
  2. Applications:
    • Installed a UDP echo server on the victim node to simulate a service that the attackers target.
  3. SYN Flood Attack Logic:
    • Implemented a SendSynFlood function to create and send SYN packets from the attacker nodes to the victim node.
    • Scheduled the SYN flood attack to start at a specific time in the simulation.
  4. Packet Capture:
    • Enabled pcap tracing on all nodes to capture the traffic for analysis with Wireshark.
  5. Running the Simulation:
    • The simulation runs with attacker nodes sending a flood of SYN packets to the victim node, and the traffic are captured in pcap files.

Overall, we had implemented and executed the SYN Flood Attack in ns3 simulation tool. Get your project executed on hping3 SYN flood attack in ns3 simulation best coding support.