Some months ago, I performed a web application penetration test on an application that used passkey for authentication. As part of the assessment, I also tested the passkey implementation and noticed some unusual behavior. During the debugging process, I created two short JavaScript helper functions that can be used to hook the browser APIs involved in passkey operations, allowing the passkey configuration to be inspected and manipulated. This gave me the ability to reliably perform some passkey tests and assess the configuration and implementation.
Compass Security Blog
Offensive Defense
Pipeleek 1.0 is here. What started as a GitLab pipeline secret scanner now covers seven CI/CD platforms and comes with helpers for runner exploitation, Renovate bot abuse, and lateral movement across repositories. This post walks through what is new, shows two real-world findings from the Tor Project and GitLab itself, and introduces the GitLab Attack Lab where you can try the full attack chain yourself.
I’m happy to announce that we are releasing the beta version of RAPTR, a fully open source, API driven collaboration platform built specifically for red and purple team engagements.
This post is part of a small blog series covering common Entra ID security findings observed during real-world assessments. Each article explores selected findings in more detail to provide a clearer understanding of the underlying risks and practical implications. Conditional Access Policies Conditional Access policies are among the most important security controls in Entra ID. […]
This post is part of a small blog series covering common Entra ID security findings observed during real-world assessments. Each article explores selected findings in more detail to provide a clearer understanding of the underlying risks and practical implications. What Is Privileged Identity Management? Privileged Identity Management (PIM) is a service in Microsoft Entra ID […]
In part 2 of our 4-part series on common Entra ID security findings, we show how seemingly harmless group configurations can be abused to bypass security controls and gain high privileges.
The post shows scenarios where insufficiently protected groups are used to:
weaken Conditional Access protections for administrators
enable privilege escalation through PIM for Groups
grant privileged access to Azure resources, leading to full compromise
We also show how to detect these issues in practice using EntraFalcon and how to mitigate them.
This post is part of a small blog series covering common Entra ID security findings observed during real-world assessments. Each article explores selected findings in more detail to support a clearer understanding of the underlying risks and practical implications. Introduction In the vast majority of tenants we review, there are enterprise applications that originate from […]
We just released a big update for EntraFalcon. The new Security Findings Report adds an interactive HTML overview to EntraFalcon that consolidates tenant settings and object-based checks into structured security findings. Over 60 checks, graphical charts, filtering, export, and more options are now available.
The gRPC framework, and by extension gRPC-Web, is based on a binary data serialization format. This poses a challenge for penetration testers when intercepting browser to server communication with tools such as Burp Suite.
This project was initially started after we unexpectedly encountered gRPC-Web during a penetration test a few years ago. It is important to have adequate tooling available when this technology appears. Today, we are releasing our Burp Suite extension bRPC-Web in the hope that it will prove useful to others during their assessments.
Collaborator Everywhere is a well-known extension for Burp Suite Professional to probe and detect out-of-band pingbacks.
We developed an upgrade to the existing extension with several new exiting features. Payloads can now be edited, interactions are displayed in a separate tab and stored with the project file. This makes it easier to detect and analyze any out-of-band communication that typically occurs with SSRF or Host header vulnerabilities.
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