1. OWASP WebScarab. Contribute to OWASP/OWASP-WebScarab development by creating an account on GitHub.
2. The second thing we’ll need to do is start up Webscarab. By default Webscarab listens on port 8008 but this can be easily changed to any port. These settings can be seen in Figure 1. Figure 1: Webscarab proxy settings. We’ll also need to configure our browser so that our communication is pointed through the proxy.

1. How To Install Webscarab In Windows 7
2. How To Install Webscarab In Windows 10
3. How To Install Webscarab On Windows

Web applications remain the largest security risk for any company.

The reason is two-fold. First, most software services have moved to a web based environment giving malicious hackers a much larger landscape to attack. Second, most organizations put a majority of their resources, i.e. dollars and manpower, into network and perimeter security leaving the web unguarded.

In most cases, it is up to the web developer to secure sites as best they can. Those who know how to patch known vulnerabilities in the code they use find their services in constant demand.

In this WebScarab tutorial video, get step-by-step advice on how to install and use this free tool, including the WebScarab proxy features, among others.

For most developers, securing the sites they build is applying best practices that they are already aware of to the areas of their sites that are commonly exploited. So web application security is not so much about learning a new skill set as it is knowing where a web application is most vulnerable.

To help find vulnerabilities in their code web developers can turn to called WebScarab.

Introducing WebScarab

WebScarab is a Java based tool maintained by OWASP (The Open Web Application Security Project) used for intercepting and requests and responses between a browser and HTTP/S server. Using the fuzzer tool, you can find possible vulnerabilities in your web site’s code. Huawei hash reset code generator free download.

How To Install Webscarab In Windows 7

So to begin this tutorial, let’s go ahead and download WebScarab from here.

We also need to create a dictionary to use when we carry out a mock attack later on so open up a text editor and enter the line,‘) OR 1=1–. Save the file with the name attack.txt.

Note: WebScarab will look to the dictionary and try each of the contents as a username or password when trying to attack a website. A real attack dictionary will contain many more lines to increase the odds that the attack will be successful. We know that this SQL Injection code will work against the Hacme Casino so in the interest of time it is the only entry in our dictionary.

Next you are going to have to configure your web browser so that you can capture the requests and responses. To do this, you will have to set the proxy settings of your browser as follows:

• HTTP – localhost
• SSL (Secure) – localhost
• Port (for both) – 8008

The No Proxy for box in Firefox should be cleared. Likewise, the Exceptions box in Internet Explorer should be empty.

So if you were using Internet Explorer you should see:

Now that your browser is set, you are ready to get started.

But before you go plugging away at your web site, it would be wise for you to see just how WebScarab works. To do this, we are going to learn on a web site set up with vulnerabilities built into it for training purposes.

The Hacme Casino site was built by Foundstone just for this purpose. What is nice about the Casino site is that is has a built in web server so you can run it directly from any Windows computer without having to install a web server.

You can grab a copy of that from McAfee here.

Fuzzing for Vulnerabilities

Now that you have all the tools you need let’s see just how easy it is to find security holes in a web site. Start off by launching WebScarab. You are only going to see two tabs at this point, Summary and Intercept. Since we are looking for a bit more information, we are going to click on Tools à Use full-featured interface à Ok. Then, restart WebScarab and start a new session by clicking File à New so that you can tell WebScarab where to save your session.

We can give WebScarab something to look for by launching the Hacme Casino web server from your computer and then opening the browser we configured earlier and typing http://localhost:3000 in the address bar.

After you hit Enter, you will see some activity in WebScarab as the page loads. Once the page is up, try to login. Since we are just trying to capture the conversation for right now, what we use as a username and password doesn’t matter so use something like login for both.

When you turn back to WebScarab, look for /account/login under the path. Here, right-click and choose Use as fuzz template.

Now we are going to see if the login section of this web site is vulnerable to an attack.

Click on the Fuzzer tab and then the Sources button at the bottom of the page. Browse to the attack.txt file we created earlier and select that. Be sure to include something in the Description (I used Test for this example) box and then click Add and then Close.

Now we need to tell WebScarab to use Test (or whatever you used as your description) as the Fuzz Source for both the user_login and user_password parameters. You can do that by simply clicking on Fuzz Source and selecting your file.

Note: For in-depth testing you would most likely have two separate files, one may contain common usernames like admin, user, etc. and the other file would contain passwords.

When everything is loaded, click on Start and you will see WebScarab testing the values listed in your attack.txt file for the username and password.

Note where the value for

and

is

. The location will have changed from

, which is the home page, to

, which is what a user who successfully logged in would see. The reason they would see this is because this site is vulnerable to a MySQL vulnerability. If the location remains http://localhost:3000 then the attempt was unsuccessful because the exploit did not work.

How To Install Webscarab In Windows 10

WebScarab does take a bit of work because you have to tear through many different parts of your application by hand to see if they are vulnerable but it is far cheaper than spending thousands of dollars for some of the automated tools that aren’t as reliable.

A framework for analyzing applications.

WebScarab is a framework for analysing applications that communicate using the HTTP and HTTPS protocols. It is written in Java, and is thus portable to many platforms. WebScarab has several modes of operation, implemented by a number of plugins. In its most common usage, WebScarab operates as an intercepting proxy, allowing the operator to review and modify requests created by the browser before they are sent to the server, and to review and modify responses returned from the server before they are received by the browser. WebScarab is able to intercept both HTTP and HTTPS communication. The operator can also review the conversations (requests and responses) that have passed through WebScarab.

There is no shiny red button on WebScarab, it is a tool primarily designed to be used by people who can write code themselves, or at least have a pretty good understanding of the HTTP protocol. If that sounds like you, welcome! Download WebScarab, sign up for the mailing list on the OWASP subscription page, and enjoy! You can read a Brief tutorial to explain the basic workings.

WebScarab is designed to be a tool for anyone who needs to expose the workings of an HTTP(S) based application, whether to allow the developer to debug otherwise difficult problems, or to allow a security specialist to identify vulnerabilities in the way that the application has been designed or implemented.

Features

A framework without any functions is worthless, of course, and so WebScarab provides a number of plugins, mainly aimed at the security functionality for the moment. Those plugins include:

Fragments - extracts Scripts and HTML comments from HTML pages as they are seen via the proxy, or other plugins.

Proxy - observes traffic between the browser and the web server. The WebScarab proxy is able to observe both HTTP and encrypted HTTPS traffic, by negotiating an SSL connection between WebScarab and the browser instead of simply connecting the browser to the server and allowing an encrypted stream to pass through it. Various proxy plugins have also been developed to allow the operator to control the requests and responses that pass through the proxy.

Manual intercept - allows the user to modify HTTP and HTTPS requests and responses on the fly, before they reach the server or browser.

Beanshell - allows for the execution of arbitrarily complex operations on requests and responses. Anything that can be expressed in Java can be executed.

Reveal hidden fields - sometimes it is easier to modify a hidden field in the page itself, rather than intercepting the request after it has been sent. This plugin simply changes all hidden fields found in HTML pages to text fields, making them visible, and editable.

Bandwidth simulator - allows the user to emulate a slower network, in order to observe how their website would perform when accessed over, say, a modem.

Spider - identifies new URLs on the target site, and fetches them on command. Serum default presets folder download.

Manual request - Allows editing and replay of previous requests, or creation of entirely new requests.

SessionID analysis - collects and analyzes a number of cookies to visually determine the degree of randomness and unpredictability. Note that this analysis is rather trivial, and does not do any serious checks, such as FIPS, etc.

Scripted - operators can use BeanShell (or any other BSF supported language found on the classpath) to write a script to create requests and fetch them from the server. The script can then perform some analysis on the responses, with all the power of the WebScarab Request and Response object model to simplify things.

Parameter fuzzer - performs automated substitution of parameter values that are likely to expose incomplete parameter validation, leading to vulnerabilities like Cross Site Scripting (XSS) and SQL Injection.

Search - allows the user to craft arbitrary BeanShell expressions to identify conversations that should be shown in the list.

Compare - calculates the edit distance between the response bodies of the conversations observed, and a selected baseline conversation. The edit distance is 'the number of edits required to transform one document into another'. For performance reasons, edits are calculated using word tokens, rather than byte by byte.

SOAP - There is a plugin that parses WSDL, and presents the various functions and the required parameters, allowing them to be edited before being sent to the server. NOTE: This plugin is deprecated, and may be removed in the future. SOAPUI is streets beyond anything that Webscarab can do, or will ever do, and is also a free tool.

Extensions - automates checks for files that were mistakenly left in web server's root directory (e.g. .bak, ~, etc). Checks are performed for both, files and directories (e.g. /app/login.jsp will be checked for /app/login.jsp.bak, /app/login.jsp~, /app.zip, /app.tar.gz, etc). Extensions for files and directories can be edited by user.

XSS/CRLF - passive analysis plugin that searches for user-controlled data in HTTP response headers and body to identify potential CRLF injection (HTTP response splitting) and reflected cross-site scripting (XSS) vulnerabilities.

How To Install Webscarab On Windows