Vaadata is a start-up specialized in security audits. We are looking for a cybersecurity consultant (M/F) to join our team, at the interface between technical and business issues.
25 pages to know the existing and exploitable vulnerabilities on these technologies, as well as the means to counter or reduce the risks.
From the too many cyberattacks 2019, we’ve summed up 5 insights: here is our year in review.
Introduction to Public Key Certificate
A digital certificate is a data file that allow, on the one hand, the non-repudiation and the integrity of data, and on the other hand, to identify and to authenticate a person or an organization and also to encode communications.
A digital certificate includes several information, as:
- A public key
- Authentication information
- A validity time
- An issuer that signs the certificate
This last point is crucial to verify the trustworthiness of a certificate. For this, when a certificate is received, a chain of trust is built to a certificate authority.
To explain the working of the chain of trust, let’s present some notions:
The Metasploit framework is an open source tool, allowing searching, analysing and exploiting vulnerabilities. It has many modules and tools that can be very useful during intrusion tests, whether on Web applications or on a company’s information system.
Although often used relatively basically, for example to launch a simple exploitation module on a target, this framework has options and tools that make it a key ally for a pentest. We will therefore see here how to use the Metasploit framework in an optimized way.
For the demonstration, we will attack a local network we are connected to.
Before starting a pentest, should you present your product or solution to pentesters? It all depends on your situation and on your objectives!
In this previous article, we have seen what a SSRF vulnerability is, and how, in general, it can be exploited. We had placed ourselves in a quite simple theoretical framework, but various elements (either due to the vulnerability itself or due to security implementations) can make the task more complicated.
In this article, we will have a look at various methods to go further. On
- Various methods for manually bypassing filters;
- SSRFMap: a semi-automatic operating tool.
Now that we have introduced four main functionalities of Burp Suite in the previous article, we will go a bit further with some functionalities and extensions that can increase the quality of an audit and your efficacy.
Functionalities and screenshots presented in this article are from the version Professional 2.1.01.
Burp, by information security professionals, is often said to be our best friend. Burp doesn’t ring a bell? It is a software dedicated to web security audits, used by a majority of information security professionals. First, we will present you the software Burp and four fundamental modules. For those already familiar with the tool, a second more technical article details some functionalities and extensions to gain efficiency.