Your Vulnerability Scanner Might Be Your Weakest Link
Overview Vulnerability scanners are a cornerstone of modern security programs, helping teams identify weaknesses before attackers do. But when these tools are configured with privileged credentials, they can themselves become high-value targets. In one case, while running continuous testing through our Chariot platform for a Fortune 500 financial services company, we compromised a server and […]
Domain Fronting is Dead. Long Live Domain Fronting!
Overview At Black Hat and DEF CON, we demonstrated how red teams could tunnel traffic through everyday collaboration platforms like Zoom and Microsoft Teams, effectively transforming them into covert communication channels for command-and-control. That research highlighted a critical blind spot: defenders rarely block traffic to core business services because doing so would disrupt legitimate operations. […]
OAuthSeeker: Leveraging OAuth Phishing for Initial Access and Lateral Movement on Red Team Engagements
Overview The Praetorian Labs team recently conducted research into potential initial access vectors for red team engagements, focusing on attack techniques leveraging malicious applications distributed through platforms like the Microsoft Store. This included OAuth applications, malicious Outlook extensions, and other types of applications that could be delivered via the Windows Store. As part of this […]
Ghost Calls: Abusing Web Conferencing for Covert Command & Control (Part 2 of 2)
In part one, we discussed the architecture of web conferencing applications, with a specific focus on Zoom’s architecture to support web conferencing at a massive global scale. Part two will discuss the approach we developed to support tunneling traffic through Zoom and Microsoft Teams using the TURN protocol. Let’s start with a quick recap of […]
Ghost Calls: Abusing Web Conferencing for Covert Command & Control (Part 1 of 2)
Web conferencing covert C2 turns the most trusted traffic on an enterprise network, the daily Zoom and Teams calls defenders are told to exempt from inspection, into an interactive command-and-control channel. In the middle of a particularly tight red team engagement, we hit a familiar wall. Our long-term implant was rock solid: quiet, persistent, and […]
ELFDICOM: PoC Malware Polyglot Exploiting Linux-Based Medical Devices
A high severity vulnerability in DICOM, the healthcare industry’s standard file protocol for medical imaging, has remained exploitable years after its initial disclosure. The flaw enables attackers to embed malicious code within legitimate medical image files. While previous research demonstrated this vulnerability’s impact on Windows-based medical systems, Praetorian’s new proof of concept, ELFDICOM, extends the […]
An Improved Detection Signature for the Kubernetes IngressNightmare Vulnerability
Wiz recently published a detailed analysis of a critical vulnerability in the NGINX Ingress admission controller—what they’ve dubbed IngressNightmare (CVE-2025-1097, CVE-2025-1098, CVE-2025-1974, CVE-2025-24514). The vulnerability stems from insufficient input validation during configuration file processing, allowing an attacker to inject arbitrary code into the NGINX process. Wiz’s writeup is excellent and covers the technical nuances thoroughly, […]
CodeQLEAKED – Public Secrets Exposure Leads to Supply Chain Attack on GitHub CodeQL
A potential supply chain attack on GitHub CodeQL started simply: a publicly exposed secret, valid for 1.022 seconds at a time. In that second, an attacker could take a series of steps that would allow them to execute code within a GitHub Actions workflow in most repositories using CodeQL, GitHub’s code analysis engine trusted by […]
Tarbomb Denial of Service via Path Traversal
Praetorian recently uncovered a denial-of-service vulnerability by chaining together path traversal and legacy file upload features in a CI/CD web application; highlighting the risks of undocumented features and the importance of input validation in web security.
RF Fortune Telling: Frequency Hopping Predictability
In the world of wireless communications, security vulnerabilities in implemented protocols canremain hidden behind layers of complexity. What appears secure due to the intricate nature ofRF communications may harbor fundamental weaknesses. Let’s dive into a fascinating casethat reveals how a seemingly minor cryptographic weakness in frequency hopping algorithmscan compromise an entire wireless communication stream. Understanding […]