A web developer’s diary

August 2, 2016

Developer Tools and Proxy Chaining

Filed under: PHP,Tools — Celia @ 1:40 pm

What do IE developer tools and Proxy chaining have in common? Nothing other than the fact I learnt about both today.

Earlier, when I had to do authorization level attacks while logging in as a low privileged user, I used to construct the whole HTTP request in proxies and send those to Burp repeater, tweaking it till I get the response I wanted. A colleague who happens to be a Share point developer also told me know to invoke Javascript directly even if its not linked from anywhere within HTML. Enter ‘IE Developer Tools : F12’.

That made my work easier and instead of using Burp, I used Developer Tools this time to show a proof of exploit. The development team was happy too as they were able to replicate the scenario much better.

Proxy Chaining: I have been doing this all along for 3 years without knowing that there is a specific term for it. Was having a specific proxy configuration problem with Acunetix. It just didn’t connect to the site even though the proxy configuration details were right. Got Burp Suite in between Acunetix and Site and voila, it worked.

This is called as ‘Proxy Chaining’ it seems. NICE!!

August 1, 2016

Retire.js

Filed under: Tools — Celia @ 6:23 am

I got an opportunity to try this Burp Extension last week. It is a simple jar file that can be uploaded to the extender tab. Installation was a breeze.

After installing, all I had to do was go through my target website and start navigating ( I didn’t even scan). As I kept on with the navigation, I saw that burp listed some of the javascript files as having security vulnerabilities. False Positives in this case is zero percent.

This tool is better than what Web Inspect and Acunetix offer in terms of finding ‘Components Having Known Vulnerabilities’ and behind Black Duck and Palamida. Of course, The latter tools are there solely for this reason.

But if you want to find such vulnerabilities quickly even without scanning, go for this one!

http://retirejs.github.io/retire.js/

 

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