November 2019
Beginner
550 pages
13h 14m
English
Content preview from Learn Kali Linux 2019
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Null sessions
In a null session, an attacker is able to log in to a target using a null account. A null account is an account that does not actually exist. How is this possible? Some systems are vulnerable to allowing anonymous login. Once a user is able to log in anonymously, the null user is able to retrieve sensitive information stored on the target.
We can attempt a null session enumeration from our Kali Linux machine (attacker) on to the target, Metasploitable, by using the rpcclient -U "" 10.10.10.100 command, as shown in the following screenshot:
A null session attack
Using the srvinfo command, the target will return its operating system ...
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