As the web application footprint migrates client-side, tools to thoroughly analyze and test client behavior are becoming increasingly important. Burp Suite has made some great strides in this direction with their browser-based enhancements to crawling and scanning, but when it comes time to really dig into the particulars for research, we are still very much…
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A security researcher (Joel Noguera @niemand_sec) discovered a ‘critical’ misconfiguration bug in Spring Data’s Application Level Profile Semantics (ALPS). This bug allows unauthenticated users to perform an Application Programming Interface (API) request, which responds with sensitive user data that can be utilized, manipulated, or even deleted. What is ALPS? “ALPS [is] a data format for defining…
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A Brief Look at Approaches to Logging and Pitfalls to Avoid TL;DR The Logger++ extension is a great tool for recording requests and responses across all of Burp Suite. However, it is important to ensure enough log entries are retained from the tools you expect and that logs are exported if you want to keep…
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Or, “I’m Sorry, You Said You’re from Where Again?” In a prior webinar on creating weaponized Cross-Site Scripting (XSS) payloads, I mentioned that XSS payloads (written in JavaScript) could not change the HTTP Referer header. Malicious requests made through an XSS payload will often have an unexpected Referer header that does not generally make sense…
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Not long ago, I was on an engagement where the client made use of a hybrid Office 365 environment. In their setup, authentication credentials were managed by the on-premises Active Directory (AD) Domain Controller and then synced to Azure AD via Azure AD Connect. We were tasked with gaining access to sensitive customer information. And…
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So, who is testing the client-side components of Single Page Applications (SPAs)? What are you doing exactly, dropping a few cross-site scripting (XSS) polyglots into boxes like you used to do with “<ScRiPt>alert(123)</sCrIpT>” for traditional apps back in 2001? Are you mostly holding out hope that all big problems will be in the back-end APIs?…
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Note to Reader: For simplicity, I will be referring to all Unix, Linux, and other Unix-like systems simply as *nix, unless a specific distinction needs to be made. As a pentester, you will likely come across a *nix system at some point. If you are like many of the people I have worked with and…
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The main advantage of utilizing serverless architecture, such as Amazon Web Services (AWS), is that it is a great way to build applications without having to manage the infrastructure. The provider will provision, scale, and maintain the servers to run applications, databases, and storage systems. Naturally, this offloads the risk of server-side insecurities to the…
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Bring your own device (BYOD) is an accepted convention, most commonly for mobile devices, in corporate environments. Even company-owned devices are treated by employees as personal devices and are often incorporated into the environment in the same way that employee-owned devices are. Our job in information security is to ensure that the business initiatives like…
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On offensive engagements, we frequently encounter centralized internal password managers that are used by various departments to store incredibly sensitive account information, such as Domain Admin accounts, API keys, credit card data, the works. It used to be that these systems were implemented without multi-factor authentication. “Hacking” them was as simple as finding somebody that…
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