How to implement icmp redirect attack in OMNeT++

To implement an ICMP redirect attack in OMNeT++ has requires to encompass mimicking a scenario where to a target node an attacker sends malicious ICMP redirect messages, affecting it to reroute traffic through a malicious route. This kind of attack can disrupt network operations by varying the routing table of the target.

Given below is a step-by-step procedure to implement an ICMP redirect attack in OMNeT++ using INET framework:

Step-by-Step Implementations:

1. Set up OMNeT++ and INET Framework

• Make sure that OMNeT++ and the INET framework are installed and correctly configured on the system. The INET framework offers the essential modules for mimicking network protocols, with ICMP.

2. Define the Network Topology

• State a network topology in a .ned file that contains numerous nodes like the victim, a legitimate router and the attacker. The attacker will send ICMP redirect messages to the victim to change its routing table.

Example:

network IcmpRedirectAttackNetwork

{

submodules:

attacker: StandardHost;

victim: StandardHost;

legitimateRouter: Router;

fakeRouter: Router;

connections:

attacker.ethg++ <–> Eth10G <–> legitimateRouter.ethg++;

victim.ethg++ <–> Eth10G <–> legitimateRouter.ethg++;

fakeRouter.ethg++ <–> Eth10G <–> legitimateRouter.ethg++;

}

3. Create a Custom ICMP Redirect Module

• To implement the ICMP redirect attack, we may require to make a custom C++ module that generates ICMP redirect packets. It will emulate the attack by sending these packets to the victim, instructing it to reroute traffic through a malicious or fake router.

Example of a custom ICMP redirect module:

class IcmpRedirect : public cSimpleModule

{

protected:

virtual void initialize() override;

virtual void handleMessage(cMessage *msg) override;

void sendIcmpRedirect();

};

void IcmpRedirect::initialize()

{

// Schedule the first ICMP redirect message

scheduleAt(simTime() + par(“startTime”), new cMessage(“sendRedirect”));

}

void IcmpRedirect::handleMessage(cMessage *msg)

{

if (msg->isSelfMessage()) {

sendIcmpRedirect();

delete msg;

}

}

void IcmpRedirect::sendIcmpRedirect()

{

// Create an ICMP redirect packet

auto redirectPacket = new cPacket(“ICMPRedirect”);

// Set packet parameters (e.g., ICMP type, code, gateway address)

redirectPacket->setByteLength(64); // Typical size for an ICMP packet

// Here, you would set the specific ICMP fields, such as the new gateway IP

// For simplicity, assuming the packet is ready to be sent

send(redirectPacket, “out”);

}

Define_Module(IcmpRedirect);

• In the above example, the IcmpRedirect module sends an ICMP redirect packet to the victim, indicating that it would reroute traffic by a specified gateway like the fake router.

4. Configure the Attacker Node

• Configure the attacker node to use the custom ICMP redirect module in the .ini file.

Example configuration in omnetpp.ini:

*.attacker.numApps = 1

*.attacker.app[0].typename = “IcmpRedirect”

*.attacker.app[0].startTime = 2s

*.attacker.app[0].interval = 5s  # How frequently to send redirects

• startTime defines when the ICMP redirect attack starts.
• interval can be used to manage how often the attacker sends redirect messages.

5. Configure the Victim Node

• The victim node like a client or host should be set up to receive and process ICMP messages. Usually, no special configuration is required unless we want to mimic specific behaviours like avoiding ICMP redirects.

Example:

*.victim.numApps = 1

*.victim.app[0].typename = “UdpApp”

*.victim.app[0].localPort = 5000  # Port used by victim application

• Depending on the simulation setup the victim will receive the ICMP redirect and potentially alter its routing table.

6. Run the Simulation

• Compile and run the OMNeT++ simulation. The attacker node is start sending the ICMP redirect messages to the victim, and trying to change the victim’s routing table.

7. Analyze the Results

• To monitor the network traffic and the routing behaviour of the victim node by using OMNeT++’s tools. We can examine whether the victim starts routing traffic over the fake router when receiving the ICMP redirect messages.
• Examine how the altered routing affects the network, especially whether traffic is being misrouted or intercepted by the attacker.

8. Enhancements and Variations

• Multiple Redirects: Mimic numerous attackers or repeated redirect attempts to see how the victim manages many changes to its routing table.
• Defence Mechanisms: Execute defences like filtering ICMP redirects or using secure routing protocols, and view their effectiveness.
• Routing Table Analysis: Develop the simulation to contain logging or visualization of routing table variations on the victim node.

Example Files

We make the below files as part of the simulation:

• IcmpRedirectAttackNetwork.ned: Describes the network topology.
• omnetpp.ini: For the ICMP redirect attack contains configuration settings.
• IcmpRedirect.cc: Custom C++ code for the ICMP redirect module.

In this topic, we had shown simple procedure to execute ICMP redirect attack using module, attacker, victim node and INET framework in OMNeT++ tool. We will distribute added details about ICMP redirect attack in other tool. 1. Our team of developers successfully carries out the implementation of ICMP redirect attacks using the OMNeT++ tool for your projects. Reach out to us to ensure the best simulation outcomes. Developers at omnet-manual.com successfully carries out the implementation of ICMP redirect attacks using the OMNeT++ tool for your projects. Reach out to us to ensure the best simulation outcomes