Nice, there is a new SSH client option -Z in OpenSSH 10.5 that prints the keys that will be tried for public key authentication in the order that they will be used. Manpage: man.openbsd.org/ssh.1#Z So you can see which public keys are disclosed to the remote system. #ssh #openssh
Mänu
@emanuelduss.ch
IT security. Linux & network protocols. Pentesting web applications, networks & AD infrastructures. Mostly technical stuff here. https://emanuelduss.ch
Pentesting passkeys? Security analyst @emanuelduss.ch shows two JS snippets for tampering with the WebAuthn APIs. Handy for checking if you can login using a security key without knowing the PIN. Check out the technical details and how he got there: blog.compass-security.com/2026/08/a-no...
Pipeleek 1.0 is out 💧 Secret scanning across 7 CI/CD platforms, plus runner and Renovate bot exploitation. Want to see one leaked job log turn into repo takeover? Try our deliberately vulnerable GitLab Attack Lab. Happy leeking! blog.compass-security.com/2026/08/pipe... #DevSecOps #CICD
#RBCD attacks in Impacket have been extended across an arbitrary number of domains! 🚀 Discover how to impersonate arbitrary identities through complex #ActiveDirectory forest trusts, including SPN-less exploitation. 📚 www.synacktiv.com/en/publicati... 🔨 github.com/synacktiv/im...
Exploring cross-domain & cross-forest RBCD: part 2
Exploring cross-domain & cross-forest RBCD: part 2
synacktiv.com
Frisch von der Presse: Du protestiert gegen neue Rechenzentren für Big Tech oder bist für Palästina? Dann solltest du die nächsten Abschnitte lesen. Es könnte ein Revival des Fichenstaats geben. Wo genau solche Aktivitäten in Datenbanken des Geheimdiensts landen www.republik.ch/2026/06/02/c...
Der Nachrichtendienst profitiert vom Zeitgeist
Wie die Schweiz sich vom liberalen Rechtsstaat verabschiedet.
republik.ch
On sshlabs.compass-security.training you can find a presentation and a Docker-based hands-on lab in which you can learn how SSH works, how it can be attacked and how to protect it. #security #infosec #network #ssh #openssh #pentest
SSH Labs - SSH Labs
Labs to learn about SSH security.
sshlabs.compass-security.training
SSH everywhere, misconfigurations somewhere. Our new SSH Labs let you get your hands dirty: slides, video, and a Docker-based lab. Created by our Security Analyst @emanuelduss.ch, learn how SSH breaks and how to fix it: blog.compass-security.com/2026/05/ssh-... #SSH #InfoSec #Security
SSH everywhere, misconfigurations somewhere. Our new SSH Labs let you get your hands dirty: slides, video, and a Docker-based lab. Created by our Security Analyst @emanuelduss.ch, learn how SSH breaks and how to fix it: blog.compass-security.com/2026/05/ssh-... #SSH #InfoSec #Security
Collision! Although successful on stage, Emanuele Barbeno, Cyrill Bannwart, Yves Bieri, Lukasz D., Urs Mueller (@compasssecurity) of Compass Security targeted Anthropic Claude Code, hitting a one-vulnerability collision with a previous attempt and earning $20,000 & 2 Master of Pwn points. #Pwn2Own
Fast Android File Access via SSHFS over Wi-Fi or USB (MTP Alternative): emanuelduss.ch/posts/fast-a... #android #mtp #sshfs
Fast Android File Access via SSHFS over Wi-Fi or USB (MTP Alternative)
Introduction The MPT protocol used to access files via USB on your phone is not that efficient. This post shows you an alternative to MTP for accessing your files on your mobile phone. It works by ins...
emanuelduss.ch
Simple shell function that calls the ip.thc.org service to get subdomains or CNAMEs pointing to a subdomain, or IP addresses pointing to a subdomain: gist.github.com/emanuelduss/... For quick and dirty subdomain enumeration 😀 THX @hackerschoice.bsky.social for this nice service 🤘 #pentest #dns
WinGet can be more than a package manager. We show how .𝚠𝚒𝚗𝚐𝚎𝚝 configs + a self-referencing LNK become a viable initial access payload when Microsoft Store is enabled. Includes detection queries & mitigation tips. blog.compass-security.com/2026/03/wing... #RedTeam #Windows #LOLBins #InitialAccess
John Ostrowski (Compass Security) and Manuel Kiesel (Cyllective AG) worked together on CVE-2025-13154, a Lenovo Vantage LPE. Even after Microsoft closed a known primitive, collaboration led to a working PoC. blog.compass-security.com/2026/02/from... #Windows #CVE #SecurityResearch #PrivEsc
This was a really cool and awesome course ❤️! I learned so much in these two days and did a lot of stuff I never did and never heard about before. It was cool when (after some nasty debugging 🫠) the encryption key could finally be sniffed 🤘. Thanks a lot for your training, you guys rock!
Still on the “wanting to do this stuff” side? Join our mailing list and get alerted when we host the next hands-on training. www.hands-on-security.com/#trainings
🚨 New blog post! Read about CVE-2025-13154, a privilege-escalation vulnerability in a Lenovo Vantage add-in called SmartPerformance. cyllective.com/blog/posts/l... #windows #cve #infosec #pentest
Lenovo Vantage LPE/EoP (CVE-2025-13154)
A write-up of CVE-2025-13154, a privilege escalation vulnerability in Lenovo Vantage.
cyllective.com
THC Release 💥: The world’s largest IP<>Domain database: ip.thc.org All forward and reverse IPs, all CNAMES and all subdomains of every domain. For free. Updated monthly. Try: curl ip.thc.org/1.1.1.1 Raw data (187GB): ip.thc.org/docs/bulk-da... (The fine work of messede 👌)
Two blog posts just dropped - one with the details on the bloatware pwning shenanigans I was up to earlier in the year, and another on pipetap, a new Windows named pipe proxy/tool. sensepost.com/blog/2025/pw... sensepost.com/blog/2025/pi...
New video out! Security analyst John Ostrowski show the hands-on process behind discovering CVE-2025-24076 and CVE-2025-24994 described in our recent blog post. Watch here: youtu.be/YwNcTuHxnAI #security #pentest #windowsinternals #vulnresearch
300 Milliseconds to Admin: Mastering DLL Hijacking and Hooking to Win the Race
YouTube video by Compass Security
youtu.be
NTLM relays failing because of EPA? 😒 Nick Powers & @tw1sm.bsky.social break down how to enumerate EPA settings across more protocols + drop new tooling (RelayInformer) to make relays predictable. Check out their blog for more: ghst.ly/4rqwpRs
Less Praying More Relaying - Enumerating EPA Enforcement for MSSQL and HTTPS - SpecterOps
It's important to know if your NTLM relay will be prevented by integrity protections such as EPA, before setting up for and attempting the attack. In this post, we share how to solve this problem for ...
ghst.ly
Want to understand how Windows handles authentication and access tokens? Security analyst @emanuelduss.ch explains how they’re created, used, and abused - with live demos. 🎥Presentation: youtu.be/_ODdwpxXRR4?... #Security #Pentest #WindowsInternals
Windows Access Tokens - From Authentication to Exploitation
YouTube video by Compass Security
youtu.be
802.11evil now shows a Wi-Fi QR code, sends router advertisements for IPv6 support, can set static routes via DHCP and disable Wi-Fi to only act as a router. See changelog: emanuelduss.ch/posts/create... #pentest #network #tls #mitm
Create Evil Wi-Fi Access Point (802.11evil)
Introduction In pentests, connecting devices to your own network can be very useful. This enables you to exfiltrate data, download tools, analyze the network traffic and even use a transparent HTTP pr...
emanuelduss.ch
Credential Guard was supposed to end credential dumping. It didn't. Valdemar Carøe just dropped a new blog post detailing techniques for extracting credentials on fully patched Windows 11 & Server 2025 with modern protections enabled. Read for more: ghst.ly/4qtl2rm
Catching Credential Guard Off Guard - SpecterOps
Uncovering the protection mechanisms provided by modern Windows security features and identifying new methods for credential dumping.
ghst.ly
📢 Confirmed! Emanuele Barbeno, Cyrill Bannwart, Yves Bieri, Lukasz D., Urs Mueller of Compass Security combined an arbitrary file write & cleartext transmission of sensitive data to exploit the @home_assistant Green. Their third round win earns them $20,000 and 4 Master of Pwn points. #Pwn2Own
#Pentest of gRPC-Web apps is tricky due to the binary format. We are releasing bRPC-Web, a @portswigger.net @burpsuite.bsky.social extension developed by our @muukong.bsky.social that helps manipulate #gRPC-Web traffic, even in absence of #protobuf schemas. blog.compass-security.com/2025/10/brpc...
Learn about a FortiProxy Domain Fronting Protection bypass discovered by our analyst @emanuelduss.ch. Details in the advisory: www.compass-security.com/en/news/deta... Curious how web filters are evaded? Read his blog series: blog.compass-security.com/2025/03/bypa... #cve #pentest #bypass
Vulnerability in FortiProxy
Security analyst Emanuel Duss identified a vulnerability in FortiProxy.
compass-security.com
Talks from the Balkan Computer Congress 2025 security conference, which took place last September, are available on YouTube www.youtube.com/playlist?lis...
BalCCon2k25 - YouTube
BalCCon2k25 - Against the current
youtube.com
I’m excited to announce that I’ll be presenting The Fragile Lock: Novel Bypasses for SAML Authentication at Black Hat Europe! In this talk, I’ll show how I was able to continuously bypass security patches to achieve complete auth bypass for major libraries. #BHEU @blackhatevents.bsky.social
The final episode of our Kerberos deep dive is live! RBCD opens new attack paths in Kerberos. Learn how misconfigs enable privilege escalation and how to defend. youtu.be/l97RDnzdrXY?... #Kerberos #ActiveDirectory
Kerberos Deep Dive Part 6 - Resource-Based Constrained Delegation
YouTube video by Compass Security
youtu.be
I've been researching the Microsoft cloud for almost 7 years now. A few months ago that research resulted in the most impactful vulnerability I will probably ever find: a token validation flaw allowing me to get Global Admin in any Entra ID tenant. Blog: dirkjanm.io/obtaining-gl...
One Token to rule them all - obtaining Global Admin in every Entra ID tenant via Actor tokens
While preparing for my Black Hat and DEF CON talks in July of this year, I found the most impactful Entra ID vulnerability that I will probably ever find. One that could have allowed me to compromise ...
dirkjanm.io
Episode 5 of our Kerberos deep dive is live. Constrained delegation isn’t bulletproof. See how attackers exploit it, and how to defend with monitoring & best practices. youtu.be/rnhr02eKU0I?... #Kerberos #ActiveDirectory
Kerberos Deep Dive Part 5 - Constrained Delegation
YouTube video by Compass Security
youtu.be