A hacker has managed to gain access to a Linux host and stolen the password file from /etc/passwd. How can he use it? He can open it and read the user ids and corresponding passwords. The password file does not contain the passwords themselves. He cannot read it because it is encrypted. The file reveals the passwords to the root user only.

A hacker has managed to gain access to a Linux host and stolen the password file from /etc/passwd. How can he use it? He can open it and read the user ids and corresponding passwords. The password file does not contain the passwords themselves. He cannot read it because it is encrypted. The file reveals the passwords to the root user only.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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		He can open it and read the user ids and corresponding passwords.
		The password file does not contain the passwords themselves.
		He cannot read it because it is encrypted.
		The file reveals the passwords to the root user only.