What attacks does CAPTCHA prevent?

What attacks does CAPTCHA prevent?

Implementing a CAPTCHA can prevent a DDoS attack as it stops an attacker from performing database-related operations that can overload a website’s capacity. Because only legitimate users are able to pass a CAPTCHA, any attacking machines or zombified computers cannot pass this security checkpoint.

Which tool would you choose to perform a MITM attack?

The WiFi Pineapple is a device used to perform targeted MITM attacks, it was originally invented to allow IT professionals to find weaknesses in their wireless networks. The device works by acting as an access point with the same SSID as a public wireless network.

How is a network based MITM attack executed?

How is a network-based MITM attack executed? A network-based MITM attack involves a threat actor who inserts himself into a conversation between two parties. MAC address is permanently “burned” into a network interface card (NIC) so that there is not a means of altering the MAC address on a NIC.

Is man-in-the-middle passive attack?

The first step intercepts user traffic through the attacker’s network before it reaches its intended destination. The most common (and simplest) way of doing this is a passive attack in which an attacker makes free, malicious WiFi hotspots available to the public.

What kind of authentication is used in man in middle attacks?

Public Key Pair Based Authentication. Man-in-the-middle attacks typically involve spoofing something or another. Public key pair based authentication like RSA can be used in various layers of the stack to help ensure whether the things you are communicating with are actually the things you want to be communicating with.

How to prevent man in the middle attacks?

HTTPS can be used to securely communicate over HTTP using public-private key exchange. This prevents an attacker from having any use of the data he may be sniffing. Websites should only use HTTPS and not provide HTTP alternatives. Users can install browser plugins to enforce always using HTTPS on requests.

How does an attacker use a packet capture tool?

Attackers use packet capture tools to inspect packets at a low level. Using specific wireless devices that are allowed to be put into monitoring or promiscuous mode can allow an attacker to see packets that are not intended for it to see, such as packets addressed to other hosts.

When does the attacker not need to spoof?

The attacker does not need to spoof once he has a session token. Since using HTTPS is a common safeguard against ARP or DNS spoofing, attackers use SSL stripping to intercept packets and alter their HTTPS-based address requests to go to their HTTP equivalent endpoint, forcing the host to make requests to the server unencrypted.