Cyberis Blog

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  • Penetration testing
  • Tools and techniques

Obtaining NTDS.Dit Using In-Built Windows Commands

Using the same underlying technique (Volume Shadow Service), there is an in-built command (Windows 2008 and later) that does a backup of the crucial NTDS.dit file, and the SYSTEM file (containing the key required to extract the password hashes), without the need to use VB Script, third-party tools or injecting into running processes.

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  • Penetration testing
  • Tools and techniques

Testing .NET MVC For JSON Request XSS - POST2JSON Burp Extension

During a recent application penetration test on behalf of a client, one of the security vulnerabilities discovered was a stored cross-site scripting vector, delivered via a JSON request to a MVC3 controller. The malicious data (in this case a simple script tag proof-of-concept) was written to the database and subsequently echoed back to the user when viewing a number of pages within the application. This is how we wrote Burp plugin to bypass the XSS safety nets in the .NET framework...

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  • Penetration testing
  • Tools and techniques

Finding Hidden Vhosts

During a recent test we observed a number of web servers that had a number vhosts configured, only some of which were discoverable from public DNS records. Internal DNS servers were configured to resolve the remaining ‘hidden’ vhosts served by the web server. Here's how we found them...

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  • Penetration testing
  • Tools and techniques

Hacking An E-Commerce Site - For Fun Or Profit?

Having testing a number of e-commerce sites in recent times, I wanted to share some of the vulnerabilities encountered, and the reasons why someone would seek to exploit them. Recent high profile hacks in the media have rightly made retailers sit up and take notice of security - whilst PCI DSS attempts to mandate a certain level of assurance, the risk of losing substantial amounts of money and seriously damaging reputation focuses the attention on security more than any overarching standard.

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