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Question 237 - PT0-002 discussion

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A penetration tester is conducting a penetration test and discovers a vulnerability on a web server that is owned by the client. Exploiting the vulnerability allows the tester to open a reverse shell.

Enumerating the server for privilege escalation, the tester discovers the following:

Which of the following should the penetration tester do NEXT?

A.
Close the reverse shell the tester is using.
Answers
A.
Close the reverse shell the tester is using.
B.
Note this finding for inclusion in the final report.
Answers
B.
Note this finding for inclusion in the final report.
C.
Investigate the high numbered port connections.
Answers
C.
Investigate the high numbered port connections.
D.
Contact the client immediately.
Answers
D.
Contact the client immediately.
Suggested answer: C

Explanation:

The image shows the output of the netstat -antu command, which displays active internet connections for the TCP and UDP protocols. The output shows that there are four established TCP connections and two listening UDP connections on the host. The established TCP connections have high numbered ports as their local addresses, such as 49152, 49153, 49154, and 49155. These ports are in the range of ephemeral ports, which are dynamically assigned by the operating system for temporary use by applications or processes. The foreign addresses of these connections are also high numbered ports, such as 4433, 4434, 4435, and 4436. These ports are not well-known or registered ports for any common service or protocol. The combination of high numbered ports for both local and foreign addresses suggests that these connections are suspicious and may indicate a backdoor or a covert channel on the host. Therefore, the penetration tester should investigate these connections next to determine their nature and purpose. The other options are not appropriate actions for the penetration tester at this stage.

asked 02/10/2024
Matthew Hillson
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