PenTest+ PT0-003 CompTIA Study Notes

1: Null session enumeration

Weak SMB file permissions

Fragmentation attack

2: nmap

-sV

-p 1-1023

192.168.2.2

3: #!/usr/bin/python

export $PORTS = 21,22

for $PORT in $PORTS:

try:

s.connect((ip, port))

print(“%s:%s – OPEN” % (ip, port))

except socket.timeout

print(“%:%s – TIMEOUT” % (ip, port))

except socket.error as e:

print(“%:%s – CLOSED” % (ip, port))

finally

s.close()

port_scan(sys.argv[1], ports)

The missing do keyword is the reason for the syntax error. Bash for loops must include a do statement before executing commands within the loop.

Corrected script:

#!/bin/bash

for i in {1..254}; do

ping -c1 192.168.1.$i

done

From the CompTIA PenTest+ PT0-003 Official Study Guide (Chapter 4 – Scanning and Enumeration):

“In Bash scripting, control structures like for-loops require correct syntax, including the 'do' keyword for loop logic to execute properly.”

Understanding netsh.exe:

Purpose: Configures network settings, including IP addresses, DNS, and firewall settings.

Firewall Management: Can enable, disable, or modify firewall rules.

Disabling the Firewall:

Command: Use netsh.exe to disable the firewall.

netsh advfirewall set allprofiles state off

Usage in Penetration Testing:

Pivoting: Disabling the firewall can help the penetration tester pivot from one system to another by removing network restrictions.

Command Execution: Ensure the command is executed with appropriate privileges.

References from Pentesting Literature:

netsh.exe is commonly mentioned in penetration testing guides for configuring network settings and managing firewalls.

HTB write-ups often reference the use of netsh.exe for managing firewall settings during network-based penetration tests.

SearchSploit is a command-line interface for Exploit-DB that allows testers to quickly search for known exploits based on software name and version.

With Apache 2.2.3, lighttpd 1.4.32, and MySQL, the tester can plug these into SearchSploit to identify vulnerabilities, matching the goal of finding quick attack paths with limited time.

Other tools:

msfvenom: Payload generator, not a search tool.

sqlmap: SQLi exploitation tool, useful for web apps with SQLi, but requires validation of such a vuln first.

BeEF: Browser exploitation framework, not relevant here.

CompTIA PenTest+ Reference:

PT0-003 Objective 2.2 & 2.5: Exploit and identify attack paths.

SearchSploit and Exploit-DB usage are recommended tools in CompTIA’s resources.