Skip to main content

An alternative to Paros+Ntlmaps

In my last post , I had described about how to set up Paros with Ntlmaps to do security assessment of the application requiring NTLM authentication.
It always works for me properly, until today! After a long time , I stumbled upon one application which requires NTLM authentication. As a Paros lover (no reasons, just due to its simple interface, I love it), I launched Paros and Ntlmaps. But badluck for me, couldn't figure out why Ntlmaps was unhappy with me. My whole day went in troubleshooting! Even I ended up un-installing and installing Ntlmaps. Even I locked my Windows user-credentials after exceeding maximum no of attempts from my system to the application. Anyways I got it unlocked. Even my colleagues were absent today (Ronnie, Thyagu) who might have helped me in configuring Ntlmaps.

Anyways, it's funny that I had never paid attention to a functionality already there in Burp and WebScarab- I was laughing at myself!
These proxies already have built-in functionality for working with the applications requiring NTLM. It's just so simple-took two minutes to setup. I should have tried them earlier. Anyways, necessity is mother of inventions ;).
Following are the options:

In Burp: Go to Options-> do www authentication section. You can add credentials or just check "Prompt for credentials on authentication failure".


The Burp will prompt you for entering NTLM credentials whenever you will try to access sites requiring NTLM authentication. Enter the details manually:

It will be saved for your future use:




Similarly in WebScarab: Go to Tools->Credentials.
Here you can enter the NTLM credentials or simply check the "Ask when required". The credentials entered by you will come up there:


Very simple and powerful options, I should have explored it earlier!

Comments

Popular posts from this blog

File Upload through Null Byte Injection

Sometimes, during file upload we come across situation wherein there would be check on the file extension at the client side as well as server side too. If the application does allow only .jpeg extension to be uploaded, the client side java script checks for the extension of the file before passing the request. We all know that how easily this can be defeated. Some applications, checks for the extension at the server side also. That's not easy to bypass. However there are some ways with which it still can be bypassed. Most of server side scripts are written in high level languages such as Php, Java etc who still use some C/C++ libraries to read the file name and contents. That leads to the problem. In C/C++ a line ends with /00 or which is called Null Byte. So whenever the interpreter sees a null byte at the end of the a string, it stops reading thinking it has reached at the end of the string. This can be used for the bypass. It works for many servers, specially php servers. T...

Breaking Excel password protection

If you came across an excel sheet asking for password for allowing to make any changes into it, you may want to unprotect it. All we need to do is to edit the xml file which comes intrinsically packaged with Excel 2007 or 2010. But what about Excel 2003? For that, open the Excel 2003 file within Excel 2007, save it as xlsx file. So, keep in mind all the Excel files below 2007 version, you need to convert them as Excel 2007 with extension .xlsx. Now here are the steps for doing that: 1. Open the Excel 2003 file (e.g. Secret.xlsx) and save it as .xlsx (Excel 2007) format. If you already have Excel 2007 file, then no need for any conversion. 2. Now change the extension of the above file to .zip and extract the zipped file. Browse through the file in the extracted folder and go to: <LocalPath>\Secret\xl\worksheets.   3. Now open the sheet/ sheets you want to remove protection in any xml editor. Look for keywords such as 'sheetProtection' or 'workbo...

jtool - an alternative to otool

jtool comes with a capability of running on Linux environment. Some ipa scanning tools are created to run on Linux environment where mac environment is not available. In such cases tools such as otool and class-dump-z will not work. So jtool can be an alternative to otool. For more information on jtool please refer to http://www.newosxbook.com/tools/jtool.html . It lists down various commands which have same output as otool or a equivalent. There are several commands mentioned in link. But for our customized requirements and basis checks I have listed down the below ones after running on many binaries. The outputs are similar or equivalent to otool and class-dump-z: Commands for checking PIE flag (ASLR) in jTool jtool -d -v -arch | grep stack ·           Automatic Reference Counting (ARC) protection: jtool -d -v -arch | grep _objc_release ·           To check if the devic...