Anders Kristiansen
721 posts

Anders Kristiansen
@pelsner
Master Information Security.
Oslo เข้าร่วม Mart 2010
242 กำลังติดตาม126 ผู้ติดตาม

With every calm word and calculated strike, Leonardo shows what it means to be a leader. #MTGxTMNT
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Anders Kristiansen รีทวีตแล้ว
Anders Kristiansen รีทวีตแล้ว

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-glob…
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Excited to share my latest blog post on XDR Unified RBAC! I dive deep into how you can streamline security management by unifying role-based access control across your XDR platform.
Check it out here: anderskristiansen.com/post/2025/xdr-…
#Security #XDR #RBAC #Cybersecurity #InfoSec
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Anders Kristiansen รีทวีตแล้ว

Microsoft is starting to move antivirus providers out of the Windows kernel. Security vendors are about to test new Windows changes in a private preview that's designed to prevent another CrowdStrike incident. Full details and interview 👇 theverge.com/news/692637/mi…
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Anders Kristiansen รีทวีตแล้ว

Detect and shut down token attacks as they happen. Check out token protection enforcement in Microsoft Entra. youtu.be/gPcNlm0CyOw #TokenProtection

YouTube
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@pelsner Not sure I follow - or maybe my first tweet needs explained.
It's "just" a script to grab CA policies then make sure a group is listed in the exclusions (if not, add it).
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Anders Kristiansen รีทวีตแล้ว

Assuming I'm reading this one correctly, this one is a pretty big deal. Continuing my take on it in a thread, but read the blog from @xybytes here:
xybytes.com/azure/Abusing-…
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Anders Kristiansen รีทวีตแล้ว

Attention IT Pros! The Microsoft UEFI CA, which SecureBoot relies on, will expire on Monday October 19, 2026, after 15 years of validity. Mark this date in your calendar. Devices require a Firmware/DB update; otherwise, stop booting. 🔒#WindowsSecurity
support.microsoft.com/en-us/topic/kb…

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Cool new summary rule for log ws learn.microsoft.com/en-us/azure/az…
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New blogpost, how does #copilot for security work and is it worth it? msandbu.org/how-does-copil…
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@karimscloud And you can set higher worklow permission to the GitHub token than set in portal 😃
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You can manage secrets and env vars on a GitHub repository without having the admin role for the repo🤯
Not knowing this, I've worked around the limitation by creating a central function to de-privilege users
nicruo.com/posts/2024/03/…
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Anders Kristiansen รีทวีตแล้ว
Anders Kristiansen รีทวีตแล้ว

Since we're talking about MS Graph...
Did you know that the combination of...
● Organization.ReadWrite.All
● Policy.ReadWrite.AuthenticationMethod
...enables escalation to Global Admin?
Details here: posts.specterops.io/passwordless-p…
Enforce 👏 M 👏 F 👏 A 👏for Global 👏 Admins 👏
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@_wald0 @StephenHinck Hi are your figure 17 (app permissions use case ) available for download anywhere?
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Starting now: join me and @StephenHinck in the #BloodHound Slack. Ask us anything about the recent Microsoft breach, especially the technical details of the attack path.
Not in the BloodHound Slack yet? Join here: ghst.ly/BHSlack
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