In passive OS fingerprinting, an attacker installs a sniffer on any third party such as a router on which the victim communicates frequently. Now he studies the sniffer’s log and
The countermeasures to a buffer overflow are as follows: * Perform manual auditing of the code. * Stack execution should be disabled. * Take the support of the functions which
Snort has the following features: * It detects threats, such as buffer overflows, stealth port scans, CGI attacks, SMB probes and NetBIOS queries, NMAP and other port scanners, well-known backdoors
The SSH-2 protocol supports the following user authentications: * Public key authentication (DSA, RSA*, OpenPGP) * Host-based authentication * Password-based authentication Note: SSH-1 supports a wider range of user authentications,
The ethical hacking project comprises three phases, summarized as follows: 1. Preparation: In this phase, a formal contract that contains a non-disclosure clause as well as a legal clause to
The Basic Authentication scheme uses the username and password and encrypts the password using base64 encoding. In spite of this, there are still many security holes in the Basic Authentication
The following are the phases of malicious hacking: 1. Reconnaissance: In this phase, the attacker gathers information about the victim. 2. Scanning: In this phase, the attacker begins to probe