Get Your Kicks on Route Sixty-Sink – Identifying Vulnerabilities Using Automated Static Analysis

January 28, 2023

If you are looking for a good place to start identifying vulnerabilities in your system, it may be helpful to use an automated static analysis tool. These tools can be very powerful and have a lot of potential, especially when used on the right applications. This article will help you understand how you can use them to find many vulnerabilities on your computer.


If you are unsure about how to detect vulnerabilities in software, you may want to consider using automated static analysis tools. These tools can detect security vulnerabilities and errors in code, allowing you to find and fix them before you submit your application for pre-market approval.

The number of tools on the market can be overwhelming. There are commercial products for most programming languages, and open-source solutions. However, you should keep in mind that there are also limitations to using these tools.

One of the biggest drawbacks to static methods is the high false-positive rate. A tool that fails to detect a vulnerability can cause a developer to spend a lot of time and effort trying to figure out why the tool is indicating a potential flaw.

Another drawback is that they cannot catch runtime and configuration errors. Some systems are only capable of running code after being recompiled, so a static analyzer can’t determine whether the code is in an appropriate state at the time of execution.


The Route Sixty-Sink is the best C# implementation of the Microsoft stack I’ve seen so far. With the right tweaks it will be your best bet at getting your hands on the sandboxed ASP.NET web app of the future. Using the tools at your disposal will not only ensure that your ASP.NET application will be the talk of the town, but will also save your sanity. You can download it for free from the GitHub repository. Besides the tidbits, the toolbox will provide a plethora of best practices documentation to help your developers and testers weed out the good from the bad.

The toolbox will also equip with a suite of tools to help you proactively manage security risks. So, if you’re looking to mitigate a breach, reclaim your network, or simply improve your overall productivity, the toolbox is your ticket to a better tomorrow. If you’re lucky, you might even be a part of the next generation of ASP.NET evangelists.

Example of a sink in vulnerability research

A sink in vulnerability research is an action that occurs inside an application. In general, this involves command execution using user input. For example, the read_from_file function in line 20 of the.NET CLR exposes a length field vulnerability.

The same code could also use for an SSRF attack, which requires the insertion of a malicious file in a web application’s save function. These are common vulnerabilities that can identified by tracking the data flow from source to sink.

In this example, a length field vulnerability is trace through three different struct members. A data-flow algorithm can create a path from the user-controlled source to the sensitive sink. However, the actual algorithm must be able to handle the edge cases.

Luckily, there is a tool out there that makes this process easier. It called SinkFinder. It traverses the function calls in an application to find the sinks, and then outputs a complete call graph.

Identifying vulnerabilities in any.NET assembly with automated source-to-sink analysis

A source-sink-sanitizer database (DB) 208c stores information about the sources, sinks, and sanitizers. It also includes conflicts between sanitizers.

Input sources can be files, console, sockets, or servlet requests. The user can add or remove sanitizers, as well as change the order of sanitizers. If a data flow is vulnerable, it input to a sink. A sanitizer fixes the vulnerability.

For example, suppose a C# executable calls a dangerous function. That function could allow for local privilege escalation. Alternatively, a web application might save a file, which could then upload to a different web page. That file could contain SSRF vulnerabilities.

To determine the vulnerabilities, an automated test tool can analyze the code and identify the vulnerable data flows. It can then help the developer determine whether to fix the data flows. It can also highlight problematic code. This can do by displaying a graph representation of the code.

Ammar Fakhruddin


Ammar brings in 18 years of experience in strategic solutions and product development in Public Sector, Oil & Gas and Healthcare organizations. He loves solving complex real world business and data problems by bringing in leading-edge solutions that are cost effective, improve customer and employee experience. At Propelex he focuses on helping businesses achieve digital excellence using Smart Data & Cybersecurity solutions.

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