Microsoft Sercurity Response Center

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2023. január 31.

Microsoft Investigation – Threat actor consent phishing campaign abusing the verified publisher process

Summary On December 15th, 2022, Microsoft became aware of a consent phishing campaign involving threat actors fraudulently impersonating legitimate companies when enrolling in the Microsoft Cloud Partner Program (MCPP) (formerly known as Microsoft Partner Network (MPN)). The actor used fraudulent partner accounts to add a verified publisher to OAuth app registrations they created in Azure …

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2023. január 26.

Congratulations to the Top MSRC 2022 Q4 Security Researchers!

Congratulations to all the researchers recognized in this quarter’s Microsoft Researcher Recognition Program leaderboard! Thank you to everyone for your hard work and continued partnership to secure customers. The top three researchers of the 2022 Q4 Security Researcher Leaderboard are: goodbyeselene, Jarvis_1oop, and kap0k! Check out the full list of researchers recognized this quarter here. …

Congratulations to the Top MSRC 2022 Q4 Security Researchers! Read More »

2023. január 17.

Microsoft resolves four SSRF vulnerabilities in Azure cloud services

Summary  Microsoft recently fixed a set of Server-Side Request Forgery (SSRF) vulnerabilities in four Azure services (Azure API Management, Azure Functions, Azure Machine Learning, and Azure Digital Twins) reported by Orca Security. These SSRF vulnerabilities were determined to be low risk as they do not allow access to sensitive information or Azure backend services. Once …

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2023. január 6.

Publishing CBL-Mariner CVEs on the Security Update Guide CVRF API

Microsoft is pleased to announce that beginning January 11, 2023, we will publish CBL-Mariner CVEs in the Security Update Guide (SUG) Common Vulnerability Reporting Framework (CVRF) API. CBL-Mariner is a Linux distribution built by Microsoft to power Azure’s cloud and edge products and services and is currently in preview as an AKS Container Host. Sharing …

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2022. december 29.

Security Update Guide Improvement – Representing Hotpatch Updates

Today we are updating the way Microsoft Security Update Guide (SUG) represents the Windows Hotpatch feature to make it easier for users to identify the hotpatch and security updates. Hotpatching was introduced a year ago as a new way to install updates on supported Windows Server Azure Edition virtual machines (VMs) without requiring a reboot …

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2022. december 2.

BlueHat 2023: Applications to Attend NOW OPEN!

We are excited to announce that applications to attend BlueHat 2023 are now open!   BlueHat 2023 will be the 20th version of the BlueHat conference and will once again be on the Microsoft campus in Redmond, WA, USA, from February 8 – 9, 2023.   Hosted by the Microsoft Security Response Center (MSRC), BlueHat is where …

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2022. november 29.

A Ride on the Wild Side with Hacking Heavyweight Sick Codes

Beverage of Choice: Krating Daeng (Thai Red Bull) Industry Influencer he Admires: Casey John Ellis What did you want to be when you grew up? A physician and nearly did Hobbies (Present & Past): Motorcycling & Australian Football Bucket List: Continuing to discover new software Fun Fact: He currently has 2,000 tabs open “People keep …

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2022. november 16.

Announcing the Microsoft Machine Learning Membership Inference Competition (MICO)

We’re excited to announce the launch of a new competition focusing on the security and privacy of machine learning (ML) systems. Machine learning has already become a key enabler in many products and services, and this trend is likely to continue. It is therefore critical to understand the security and privacy guarantees provided by state-of-the-art …

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2022. november 3.

Awareness and guidance related to OpenSSL 3.0 – 3.0.6 risk (CVE-2022-3786 and CVE-2202-3602)

Summary   Microsoft is aware and actively addressing the impact associated with the recent OpenSSL vulnerabilities announced on October 25th 2022, fixed in version 3.0.7. As part of our standard processes, we are rolling out fixes for impacted services.  Any customer action that is required will be highlighted in this blog and our associated Security Update …

Awareness and guidance related to OpenSSL 3.0 – 3.0.6 risk (CVE-2022-3786 and CVE-2202-3602) Read More »

2022. november 1.

Microsoft Mitigates Vulnerability in Jupyter Notebooks for Azure Cosmos DB

Summary Microsoft recently fixed an authentication bypass vulnerability in Jupyter Notebooks for Azure Cosmos DB (currently in preview) reported by Orca Security.  Customers not using Jupyter Notebooks (99.8% of Azure Cosmos DB customers do NOT use Jupyter notebooks) were not susceptible to this vulnerability. The bug was introduced on August 12th and fully patched worldwide …

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2022. október 31.

Reflecting on Cybersecurity Awareness Month: At its Core, Cybersecurity is all about People

As Cybersecurity Awareness Month 2022 comes to a close, I’m grateful for the impact it has had in bringing cybersecurity to the forefront since it began in 2004. Though the month may be over, our work in cybersecurity is never done. Often, we think about cybersecurity as a complex technology problem, but at its core, …

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2022. október 24.

Congratulations to the Top MSRC 2022 Q3 Security Researchers!

Congratulations to all the researchers recognized in this quarter’s Microsoft Researcher Recognition Program leaderboard! Thank you to everyone for your hard work and continued partnership to secure customers. The top three researchers of the 2022 Q3 Security Researcher Leaderboard are: Zhiyi Zhang, Yuki Chen, and Dang The Tuyen! Check out the full list of researchers …

Congratulations to the Top MSRC 2022 Q3 Security Researchers! Read More »

2022. október 19.

Investigation Regarding Misconfigured Microsoft Storage Location

Summary  Security researchers at SOCRadar informed Microsoft on September 24, 2022, of a misconfigured Microsoft endpoint. This misconfiguration resulted in the potential for unauthenticated access to some business transaction data corresponding to interactions between Microsoft and prospective customers, such as the planning or potential implementation and provisioning of Microsoft services.     Upon being notified of …

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2022. október 19.

Awareness and guidance related to potential Service Fabric Explorer (SFX) v1 web client risk

Summary Microsoft was recently made aware of a Cross-Site Scripting (XSS) vulnerability (CVE-2022-35829), that under limited circumstances, affects older versions of Service Fabric Explorer (SFX). The current default SFX web client (SFXv2) is not vulnerable to this attack. However, customers can manually switch from the default web client (SFXv2) to an older vulnerable SFX web …

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