In the previous posts of this series, we looked at different ways to bypass web filters, such as Host header spoofing and domain fronting. As we’ve learned, these techniques can be detected by proxies employing TLS inspection, by checking whether the hostname in the SNI matches the one in the HTTP Host header. If they […]
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Offensive Defense
The last two blog posts in this series were about SNI spoofing and Host header spoofing. We also learned that the latter is addressed by some vendors with a technique called “Domain Fronting Detection”. But what exactly is domain fronting? This will be explained in this blog post.
In the last post about bypassing web filters, I discussed how SNI spoofing works and how this can also be prevented by web filters. This post is about another bypass technique called Host Header spoofing.
This is the first part of a series of blog posts about techniques to bypass web filters, looking at increasingly advanced techniques with each part.
The first part is about how SNI spoofing can be used to bypass web filters.
Don’t we all know the hassle of managing loads of passwords, trying to come up with secure and unique ones only to try afterwards to remember them? Or always staying on high alert whether the URL is definitely the valid one for the website we are trying to visit?
What if all this could be over soon?
Welcome to Passkeys!
Introducing a certipy parse command to perform stealthy offline AD CS enumeration based on local registry data.
This blog post introduces our new custom queries for BloodHound Community Edition (CE) and explains how you can use them effectively to analyze your Active Directory infrastructure. TL;DR: Check out our new BloodHound CE custom queries! Active Directory and BloodHound The majority of our customers run a Microsoft Active Directory infrastructure, either exclusively on-prem or […]
Over the past few years, we have had the opportunity to conduct several Purple Teaming exercises together with our customers.
Particularly after Purple Teaming exercises involving external providers, we often see a mismatch between the customer’s expectations and the service provided.
This blog post attempts to summarize how to prevent the most prevalent issues with a managed security service as early as possible.
Red Teaming engagements are “realistic” attack simulations designed to test the security posture of an organization and its Blue Team. This term is used in many different ways, so if you’re not sure where to draw the line, Michael Schneier’s latest blog post provides a good comparison of different types of assessment. Anyway, when doing […]
TLDR: Scan GitLab job logs for credentials using https://github.com/CompassSecurity/pipeleak Many organizations use (self-hosted) GitLab instances to manage their source code and a lot of infrastructure is managed in code (IaC), thus these configurations must be source-controlled as well, putting a lot of responsibility on the source code platform in use. Often deployments are automated using CI/CD […]
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