To Simulate a Password Sniffing Attack in OPNET has includes to configure the scenario that attacker node passively disturbs the network traffic that seizure the unencoding to classify the transmission of entire network. Password sniffing usually targets protocols which transmit login credentials in plaintext such as HTTP, FTP, Telnet, or unsecured email protocols like POP3 without TLS. This type of attack is usually connected in unsafe network settings. phdprime.com is your ultimate resource, offering fresh topics and full step-by-step support for your simulation needs.
Here’s a step-by-step brief procedure to replicate a password sniffing attack in OPNET:
Steps to Simulate Password Sniffing Attacks projects using OPNET
- Set up OPNET Environment
- Open OPNET Modeler, builds a new project, and label it something associated like “Password Sniffing Simulation.”
- Configure the workspace has includes both legitimate client-server connections and an attacker node located to listener on network traffic.
- Design Network Topology
- Set up a network topology that includes:
- Client devices: This device simulates users logging into web applications, email accounts, FTP servers, etc.
- Servers: Web servers, FTP servers, or email servers which require the authentication could be configuring the use of unencrypted protocols.
- Routers or switches: we offer the network connectivity between clients and servers.
- Attacker node: These nodes are interrupting and seize network traffic that filter to classify their unencrypted.
- Allow which the attacker node is located in the same network segment or broadcast domain by the way of the target devices for instance in the similar LAN or Wi-Fi range we simulate the passive monitoring.
- Configure Legitimate Network Traffic
- Set up the regular communication between client devices and servers we focussed on applications which require a login credentials. In Application Configuration, designate the applications that use the unencrypted protocols such as:
- For web-based logins we use HTTP
- For file transfer logins we use FTP
- For remote login we use Telnet
- POP3 for email (without TLS encryption).
- Use Profile setup and we access this application to client devices for simulating the regular user performance of logging into services lacking of encode.
- Configure the Attacker Node for Password Sniffing
- Set up the attacker node that acts as in unrestrained mode like if supported in OPNET we seize all packets on the network is not just addressed packets.
- Configure the attacker node to observe on seizure their packets transfer between client devices and servers and focus their certain protocols that classify their login could be routed in plaintext.
- Make sure the data seizure for packet headers and payloads because of the attacker node can be filter in the login details inserted in seizure traffic.
- Define Attack Parameters
- Adjust the attacker’s packet to seizure on to extract the certain protocol types:
- HTTP Login Traffic: capture their HTTP packets and filtering the requests that includes “POST” data in which the login credentials might be transmit.
- FTP Commands: Capture the FTP traffic we monitor on the “USER” and “PASS” commands which transmit usernames and passwords in plaintext.
- Telnet Sessions: Capture the Telnet traffic that login details and commands are transmitting the unencrypted.
- POP3 Email Login: capture their POP3 traffic for mainly the “USER” and “PASS” commands, we need to use authenticate email access.
- Settings to capture duration we instantaneously track their traffic or set certain intervals to capture their login events selectively.
- Enable Data Collection for Monitoring
- Set up the data collection for the attacker node to evaluate the seizure packets:
- Protocol Identification: Making sure the packet examination to identify protocols observes application-specific commands like FTP “USER” and “PASS” commands.
- Traffic Pattern Analysis: Collect the information on packet sizes, timing, and frequency which can be maintenances login attempts.
- Packet Payload Analysis: Capture and log packet payloads allocates the attacker node to evaluate and filter plaintext credentials from the seizure packets.
- Run the Simulation
- Begin the replication in OPNET, enabling the attacker node to seizure network traffic by the way of legitimate clients communicates with the servers.
- Monitor on how the attacker node interrupts packets and logs data associated to authentication tries over leaky protocols.
- Analyse Results
- Utilize OPNET’s evaluation tools to investigate the data collected by the attacker:
- Captured Credentials: Review the seizure packet payloads to validate any plaintext usernames and passwords routed through HTTP, FTP, Telnet, or POP3.
- Protocol Analysis: Validate that protocols were interrupted and evaluate patterns, like frequency and size, to associate with login attempts.
- Session Information: Investigate the IP addresses, ports, and timestamps of interrupted packets to map out interaction sessions and classify frequent login attempts.
- Experiment with Different Attack Scenarios
- Adjust the attacker’s packet seizure the settings to replicate diverse eavesdropping environment:
- Selective Monitoring: Extract traffic according to origin or destination IP addresses, concentrates only on certain devices or servers.
- High-Volume Capture: Seizure all traffic inside the network segment to evaluate on how upsurges the data volume affects the attacker’s ability to classify credentials.
- Protocol-Specific Capture: seizure traffic for certain protocols, validating if the attacker can identify patterns which signify login attempts.
- Implement Countermeasures (Optional)
- Validate countermeasures to measure their efficiency in mitigating password sniffing attacks:
- Encryption (HTTPS, SSL/TLS): Change HTTP to HTTPS, FTP to FTPS, or utilizes TLS for POP3. Encodes the protocols mitigates the attacker from inspecting plaintext credentials in packet payloads.
- Network Segmentation: Utilize VLANs or subnetting to separate sensitive traffic and bounds the attacker’s capability to seizure the information from other network segments.
- VPN: set up a VPN for clients accessing the network slightly that encodes information’s and prevent seizure of plaintext credentials.
- Intrusion Detection System (IDS): Implement IDS to observe for malicious packet seizure or unpredicted traffic patterns which signify passive monitoring.
In this simulation setup, we offered the simple approaches that were demonstrated using the detailed procedures related to the Password Sniffing Attack projects which were simulated and evaluated through OPNET tool. Some specific details regarding this process will be provided later.
