Skip to main content

Life Without Netcat !!

We know Netcat is a swiss army knife i.e. capable of doing many thing at one time without any extra edition in it.It can read and write to and from raw tcp ports or udp ports.So there's alot you can do with netcat in your hand.But what if your victim dont allow netcat or dont have netcat there or have a strong ids which have netcat signature??
Or
suppose you are a system administrator and want to administer remotely without netcat on client side??
If you cant run netcat on viticm(client) side then its not the end of world ,you can use trivial system calls and methods to create a temp connection very similar to the netcat .So in this post i want to enumerate some such trivial methods that can be used to produce raw tcp/ip connection from one side to other.
So in this scenario we are assuming that our attacker or system administrator have netcat in his disposal but some how he fail do implant it on victim side  because of some ids or firewall but can run scripts on it or can execute legitimate commands available on victim's computer.
So lets have look at possible Cases:

Case 1:
Victim's Box(Or machine we want to remotely administer)


Attackers Box(From where we want to administer)



Case 2:
Using relay to administer or hack 
Attacker 




Case 3:
Pipe twice and get fancy terminal
Run command in left terminal and get output in right terminal !! ;-)


If you have any other cool  idea of using netcat or its alternative please do share it in comment section.

Comments

Popular posts from this blog

Hacking Windows 10 UWP App: DLL Injection & common Vulnerabilities

I recently started working on  widows 10 Apps( Apps not Applications) security. Before diving deep in hacking terms lets try to understand what's new in Windows 10 UWP( Universal Platform) as compared to old Apps. Lets begin with how apps actually work on windows 10(desktop/tablet). Now windows 10 comes with a container only for running apps inside the isolated environment. By default, /APPCONTAINER(Linker Flag) is off. This option modifies an executable to indicate whether the app must be run in the appcontainer process-isolation environment. Specify /APPCONTAINER for an app that must run in the appcontainer environment—for example, a Windows Store app. (The option is set automatically in Visual Studio when you create a Windows Store app from a template.) For a desktop app, specify /APPCONTAINER:NO or just omit the option. The /APPCONTAINER option was introduced in Windows 8. Now there is no registry entry concept for these app in the System HIVE rather they install they own hiv

Installing vmware-11.0 on Ubuntu 15.04 Using kernel Patch

curl http://pastie.org/pastes/9934018/download -o /tmp/vmnet-3.19.patch cd /usr/lib/vmware/modules/source tar -xf vmnet.tar patch -p0 -i /tmp/vmnet-3.19.patch tar -cf vmnet.tar vmnet-only rm -r *-only vmware-modconfig --console --install-all References: http://askubuntu.com/questions/605530/vmware-player-7-1-0-on-ubuntu-15-04-kernel-3-19-0-10-generic-app-loading http://askubuntu.com/questions/617704/failed-to-build-vmnet-for-kernel-3-19

SSI Injection Attack

SSIs are directives present on Web applications used to feed an HTML page with dynamic contents. They are similar to CGIs, except that SSIs are used to execute some actions before the current page is loaded or while the page is being visualized. In order to do so, the web server analyzes SSI before supplying the page to the user. The Server-Side Includes attack allows the exploitation of a web application by injecting scripts in HTML pages or executing arbitrary codes remotely. It can be exploited through manipulation of SSI in use in the application or force its use through user input fields. It is possible to check if the application is properly validating input fields data by inserting characters that are used in SSI directives, like:  Code: < ! # = / . " - > and [a-zA-Z0-9] Another way to discover if the application is vulnerable is to verify the presence of pages with extension .stm, .shtm and .shtml. However, the lack of these type of pages does not mean that th