Allgemeine Sicherheitsinformationen von Microsoft

An Obsession With Impact: The Inspiring Journey of a Dreamer That Led to a Career at Microsoft
on 20. Februar 2024 at 8:00

Bruce’s story unfolds in Cincinnati, Ohio. As a young boy, he had an ambitious dream of one day becoming the President of the United States. This aspiration remained his guiding star until he began his professional career after college. His mother, amused by his

  • New Security Advisory Tab Added to the Microsoft Security Update Guide
    on 15. Februar 2024 at 8:00

    Today, we are adding a new Security Advisory tab to the Security Update Guide to meet our customers’ needs for a unified and authoritative source for the latest public information about Microsoft security updates and issues. We are continuously listening to feedback from users of the Security Update Guide. Our goal is to find new and improved ways to help customers manage security risks and keep their systems protected.

  • Congratulations to the Top MSRC 2023 Q4 Security Researchers!
    on 30. Januar 2024 at 8:00

    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 2023 Q4 Security Researcher Leaderboard are Yuki Chen, Wei, VictorV! Check out the full list of researchers recognized this quarter here.

  • Microsoft Actions Following Attack by Nation State Actor Midnight Blizzard
    on 19. Januar 2024 at 8:00

    The Microsoft security team detected a nation-state attack on our corporate systems on January 12, 2024, and immediately activated our response process to investigate, disrupt malicious activity, mitigate the attack, and deny the threat actor further access. Microsoft has identified the threat actor as Midnight Blizzard, the Russian state-sponsored actor also known as Nobelium.

  • BlueHat India Call for Papers is Now Open!
    on 8. Januar 2024 at 8:00

    You asked for it and it’s finally here! The inaugural BlueHat India conference will be held May 16-17th, 2024, in Hyderabad, India! This intimate conference will bring together a unique blend of security researchers and responders, who come together as peers to exchange ideas, experiences, and learnings in the interest of creating a safer and more secure world for all.

  • Microsoft addresses App Installer abuse
    on 28. Dezember 2023 at 8:00

    Summary In recent months, Microsoft Threat Intelligence has observed threat actors leveraging social engineering and phishing techniques to target Windows OS users and utilizing the ms-appinstaller URI scheme. We have addressed and mitigated this malicious activity by turning off ms-appinstaller by default. Additionally, Microsoft has coordinated with Certificate Authorities to revoke the abused code signing certificates utilized by malware samples we have identified.

  • Azure Serial Console Attack and Defense - Part 2
    on 19. Dezember 2023 at 8:00

    This is the second installment of the Azure Serial Console blog, which provides insights to improve defenders’ preparedness when investigating Azure Serial Console activity on Azure Linux virtual machines. While the first blog post discussed various tracing activities, such as using Azure activity and Sysmon logs on Windows virtual machines to trace serial console activity, this blog outlines how to enable logging for Azure Linux virtual machines using Sysmon for Linux to capture and how to send these events to a log analytics workspace.

  • Introducing the Microsoft Defender Bounty Program
    on 21. November 2023 at 8:00

    We are excited to announce the new Microsoft Defender Bounty Program with awards of up to $20,000 USD. The Microsoft Defender brand encompasses a variety of products and services designed to enhance the security of the Microsoft customer experience. The Microsoft Defender Bounty Program invites researchers across the globe to identify vulnerabilities in Defender products and services and share them with our team.

  • Celebrating ten years of the Microsoft Bug Bounty program and more than $60M awarded
    on 20. November 2023 at 8:00

    This year marks the tenth anniversary of the Microsoft Bug Bounty Program, an essential part of our proactive strategy to protect customers from security threats. Since its inception in 2013, Microsoft has awarded more than $60 million to thousands of security researchers from 70 countries. These individuals have discovered and reported vulnerabilities under Coordinated Vulnerability Disclosure, aiding Microsoft in navigating the continuously evolving security threat landscape and emerging technologies.

  • Reflecting on 20 years of Patch Tuesday
    on 17. November 2023 at 8:00

    This year is a landmark moment for Microsoft as we observe the 20th anniversary of Patch Tuesday updates, an initiative that has become a cornerstone of the IT world’s approach to cybersecurity. Originating from the Trustworthy Computing memo by Bill Gates in 2002, our unwavering commitment to protecting customers continues to this day and is reflected in Microsoft’s Secure Future Initiative announced this month.

  • Microsoft guidance regarding credentials leaked to GitHub Actions Logs through Azure CLI
    on 14. November 2023 at 8:00

    Summary The Microsoft Security Response Center (MSRC) was made aware of a vulnerability where Azure Command-Line Interface (CLI) could expose sensitive information, including credentials, through GitHub Actions logs. The researcher, from Palo Alto Networks Prisma Cloud, found that Azure CLI commands could be used to show sensitive data and output to Continuous Integration and Continuous Deployment (CI/CD) logs.

  • Congratulations to the Top MSRC 2023 Q3 Security Researchers!
    on 16. Oktober 2023 at 7:00

    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 2023 Q3 Security Researcher Leaderboard are Wei, VictorV, and Anonymous! Check out the full list of researchers recognized this quarter here.

  • Introducing the Microsoft AI Bug Bounty Program featuring the AI-powered Bing experience
    on 12. Oktober 2023 at 7:00

    Today at BlueHat we announced the new Microsoft AI bug bounty program with awards up to $15,000. This new bounty program features the AI-powered Bing experience as the first in scope product. The following products and integrations are eligible for bounty awards: AI-powered Bing experiences on bing.com in Browser (All major vendors are supported, including Bing Chat, Bing Chat for Enterprise, and Bing Image Creator) AI-powered Bing integration in Microsoft Edge (Windows), including Bing Chat for Enterprise AI-powered Bing integration in the Microsoft Start Application (iOS and Android) AI-powered Bing integration in the Skype Mobile Application (iOS and Android) Full details can be found on our bounty program website.

  • Microsoft Response to Distributed Denial of Service (DDoS) Attacks against HTTP/2
    on 10. Oktober 2023 at 7:00

    Summary Beginning in September 2023, Microsoft was notified by industry partners about a newly identified Distributed Denial-of-Service (DDoS) attack technique being used in the wild targeting HTTP/2 protocol. This vulnerability (CVE-2023-44487) impacts any internet exposed HTTP/2 endpoints. As an industry leader, Microsoft promptly opened an investigation and subsequently began working with industry partners for a coordinated disclosure and mitigation plan.

  • Cybersecurity Awareness Month 2023: Elevating Security Together
    on 5. Oktober 2023 at 7:00

    As the 20th anniversary of Cybersecurity Awareness Month begins, I find myself reflecting on the strides made since its inception. The journey to enhance and improve cybersecurity is ongoing and extends beyond October. It’s not merely a technological challenge; it is fundamentally about people. It’s about the customers and communities that we at Microsoft work tirelessly to safeguard and defend.

  • Microsoft’s Response to Open-Source Vulnerabilities - CVE-2023-4863 and CVE-2023-5217
    on 2. Oktober 2023 at 7:00

    Microsoft is aware and has released patches associated with the two Open-Source Software security vulnerabilities, CVE-2023-4863 and CVE-2023-5217. Through our investigation, we found that these affect a subset of our products and as of today, we have addressed them in our products as outlined below: CVE-2023-4863 Microsoft Edge Microsoft Teams for Desktop Skype for Desktop Webp Image Extensions (Released on Windows and updates through Microsoft Store) CVE-2023-5217

  • Journey Down Under: How Rocco Became Australia’s Premier Hacker
    on 25. September 2023 at 7:00

    Fun facts about Rocco Calvi (@TecR0c): Microsoft MVR: Rocco is a 2023 Microsoft Most Valuable Researcher. Fitness fanatic: Inspired by old-school body building and countless hours of chopping and carrying wood in the mountains during his youth, Rocco remains a fitness enthusiast, setting himself challenges and pushing his limits.

  • Microsoft mitigated exposure of internal information in a storage account due to overly-permissive SAS token
    on 18. September 2023 at 7:00

    Summary As part of a recent Coordinated Vulnerability Disclosure (CVD) report from Wiz.io, Microsoft investigated and remediated an incident involving a Microsoft employee who shared a URL for a blob store in a public GitHub repository while contributing to open-source AI learning models. This URL included an overly-permissive Shared Access Signature (SAS) token for an internal storage account.

  • Results of Major Technical Investigations for Storm-0558 Key Acquisition
    on 6. September 2023 at 7:00

    On July 11, 2023, Microsoft published a blog post which details how the China-Based threat actor, Storm-0558, used an acquired Microsoft account (MSA) consumer key to forge tokens to access OWA and Outlook.com. Upon identifying that the threat actor had acquired the consumer key, Microsoft performed a comprehensive technical investigation into the acquisition of the Microsoft account consumer signing key, including how it was used to access enterprise email.

  • Azure Serial Console Attack and Defense - Part 1
    on 10. August 2023 at 7:00

    Ever had a virtual machine crash? Azure Serial console is a great way to directly connect to your Virtual machine and debug what went wrong. Azure Serial Console is a feature that’s available for free for everyone. While the primary intent of this feature is to assist users debug their machine, there are several interesting ways to abuse the features and compromise sensitive information.

  • Congratulations to the MSRC 2023 Most Valuable Security Researchers!
    on 8. August 2023 at 7:00

    The Microsoft Researcher Recognition Program offers public thanks and recognition to security researchers who help protect our customers through discovering and sharing security vulnerabilities under Coordinated Vulnerability Disclosure. Today, we are excited to recognize this year’s top 100 Most Valuable Researchers (MVRs) based on the total number of points earned for each valid report.

  • Updating our Vulnerability Severity Classification for AI Systems
    on 8. August 2023 at 7:00

    The Microsoft Security Response Center (MSRC) is always looking for ways to provide clarity and transparency around how we assess the impact of vulnerabilities reported in our products and services. To this end, we are announcing the Microsoft Vulnerability Severity Classification for AI Systems, an update to Microsoft’s existing vulnerability severity classification (i.

  • Microsoft Bug Bounty Program Year in Review: $13.8M in Rewards
    on 7. August 2023 at 7:00

    We are thrilled to share the results of our collaboration with over 345 security researchers from +45 countries around the world in the past 12 months. Together, we have discovered and fixed more than a thousand potential security issues before they impacted our customers. In recognition of this valuable collaboration, we have awarded $13.

  • Microsoft mitigates Power Platform Custom Code information disclosure vulnerability
    on 4. August 2023 at 7:00

    Summary On 30 March 2023, Tenable informed Microsoft under Coordinated Vulnerability Disclosure (CVD) of a security issue concerning Power Platform Custom Connectors using Custom Code. This feature allows customers to write code for custom connectors. This issue has been fully addressed for all customers and no customer remediation action is required.

  • BlueHat October 2023 Call for Papers is Now Open!
    on 27. Juli 2023 at 7:00

    As you may have seen on social media, the next BlueHat conference will be October 11 – 12, 2023, on Microsoft’s Redmond campus in Washington state, USA. The Call for Papers (CFP) is now open through August 18, 2023. The BlueHat community is a unique blend of security researchers and responders from both inside and outside of Microsoft, who come together as peers to exchange ideas, experiences, and learnings in the interest of creating a safer and more secure world for all.

  • Updated Researcher Portal Submission Form: Discover the New Fields in the Submission Form
    on 20. Juli 2023 at 7:00

    Summary: We are excited to announce the release of the updated Researcher Portal submission form. These new fields allow Security Researchers to provide additional context for the reported security issue, providing product teams with more data for analysis, gain insights and identify trends across multiple reported security vulnerabilities. The additional fields are not mandatory fields to submit a report.

  • From Bounty Leaderboards to Microsoft Security Researcher, Meet Cameron Vincent!
    on 17. Juli 2023 at 7:00

    Fun Facts: Game you binged: Guitar Hero and Rock Band fanatic. Go to snack: Nutri-Grain Bars. Favorite Drink: Soda – Coca Cola specifically. Favorite Place: Singapore – stayed an extra week after a hacking collaboration and truly fell in love and hopes to get back as soon as possible. Favorite Movie/Genre: Parasite – Korean Cinema, had been watching Koren Cinema before it became a thing.

  • What to Expect When Reporting Vulnerabilities to Microsoft
    on 14. Juli 2023 at 9:00

    At the Microsoft Security Response Center (MSRC), our mission is to protect our customers, communities, and Microsoft from current and emerging threats to security and privacy. One of the ways we do this is by working with security researchers to discover security vulnerabilities in our services and products, and then making sure those that pose a threat to customers get fixed.

  • Congratulations to the Top MSRC 2023 Q2 Security Researchers!
    on 14. Juli 2023 at 7:00

    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 2023 Q2 Security Researcher Leaderboard are: Yuki Chen, HAO LI, wkai! Check out the full list of researchers recognized this quarter here.

  • Microsoft mitigates China-based threat actor Storm-0558 targeting of customer email
    on 11. Juli 2023 at 7:00

    UPDATE: Microsoft performed a comprehensive technical investigation into the acquisition of the Microsoft account consumer signing key, including how it was used to access enterprise email. Our technical investigation has concluded, and on September 6, 2023, we published our investigation findings. Microsoft has released threat analysis on Storm-0558 activity here. Microsoft additionally released additional defense-in-depth security fixes to help customers improve token validation in their custom applications.

  • Breaking Barriers: Aditi’s Journey Through Sight Loss to Microsoft AI Innovator
    on 28. Juni 2023 at 7:00

    Facts about Aditi Shah: Tools she uses: Aditi’s main tool is JAWS, a screen reader from Freedom Scientific, which she touts as the best in the market. This tool has made her digital life more manageable, enabling her to perform almost any task independently. Aditi also uses Seeing AI, a Microsoft app that she uses for important life tasks, like reading her mail, providing descriptions of different products, identifying colors for her outfits, and more.

  • Potential Risk of Privilege Escalation in Azure AD Applications
    on 20. Juni 2023 at 7:00

    Summary Microsoft has developed mitigations for an insecure anti-pattern used in Azure AD (AAD) applications highlighted by Descope, and reported to Microsoft, where use of the email claim from access tokens for authorization can lead to an escalation of privilege. An attacker can falsify the email claim in tokens issued to applications.

  • Microsoft Response to Layer 7 Distributed Denial of Service (DDoS) Attacks
    on 16. Juni 2023 at 7:00

    Summary Beginning in early June 2023, Microsoft identified surges in traffic against some services that temporarily impacted availability. Microsoft promptly opened an investigation and subsequently began tracking ongoing DDoS activity by the threat actor that Microsoft tracks as Storm-1359. These attacks likely rely on access to multiple virtual private servers (VPS) in conjunction with rented cloud infrastructure, open proxies, and DDoS tools.

  • Microsoft mitigates set of cross-site scripting (XSS) vulnerabilities in Azure Bastion and Azure Container Registry
    on 14. Juni 2023 at 7:00

    Summary Microsoft recently mitigated a set of cross-site scripting vulnerabilities affecting Azure Bastion and Azure Container Registry (ACR). Exploitation of these vulnerabilities could have potentially allowed for an unauthorized user to gain access to a target user’s session within the compromised Azure service, and subsequently lead to data tampering or resource modification.

  • Hey Yara, find some vulnerabilities
    on 8. Juni 2023 at 7:00

    Intro Finding vulnerabilities in software is no easy task by itself. Doing this at cloud scale is very challenging to perform manually, and we use tools to help us identify patterns or vulnerability signatures. Yara is one of those tools. Yara is a very popular tool with Blue teams, malware researchers, and for good reason.

  • Announcing The BlueHat Podcast: Listen and Subscribe Now!
    on 17. Mai 2023 at 7:00

    Available today on all major podcast platforms is The BlueHat Podcast, a new series of security research focused conversations, continuing the themes from the BlueHat 2023 conference (session recordings available to watch here). Since 2005, BlueHat has been where the security research community, and Microsoft, come together as peers: to debate, discuss, share, challenge, celebrate and learn.

  • Guidance related to Secure Boot Manager changes associated with CVE-2023-24932
    on 9. Mai 2023 at 7:00

    Summary Today, Microsoft is releasing CVE-2023-24932, and associated configuration guidance, to address a Secure Boot bypass vulnerability used by the BlackLotus bootkit to exploit CVE-2022-21894. Customers will need to closely follow the configuration guidance to fully protect against this vulnerability. This vulnerability allows an attacker to execute self-signed code at the Unified Extensible Firmware Interface (UEFI) level while Secure Boot is enabled.

  • Microsoft Vulnerability Severity Classification for Online Services Publication
    on 18. April 2023 at 7:00

    The Microsoft Security Response Center (MSRC) is always looking for ways to provide clarity and transparency around how we assess the impact of vulnerabilities reported in our products and services. We have published a new Microsoft Vulnerability Severity Classification for Online Services to provide additional information about our approach to online services and web applications.

  • Congratulations to the Top MSRC 2023 Q1 Security Researchers!
    on 13. April 2023 at 7:00

    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 2023 Q1 Security Researcher Leaderboard are: Kai Lu (@K3vinLuSec), Yuki Chen, and wh1tc & Edwardzpeng! Check out the full list of researchers recognized this quarter here.

  • Best practices regarding Azure Storage Keys, Azure Functions, and Azure Role Based Access
    on 11. April 2023 at 7:00

    Summary Azure provides developers and security operations staff a wide array of configurable security options to meet organizational needs. Throughout the software development lifecycle, it is important for customers to understand the shared responsibility model, as well as be familiar with various security best practices. This is particularly important in deploying Azure Functions and in provisioning Azure Role Based Access Control as customers are responsible for configuring and managing applications, identity, and data.

  • Guidance on Potential Misconfiguration of Authorization of Multi-Tenant Applications that use Azure AD
    on 29. März 2023 at 7:00

    Summary Microsoft has addressed an authorization misconfiguration for multi-tenant applications that use Azure AD, initially discovered by Wiz, and reported to Microsoft, that impacted a small number of our internal applications. The misconfiguration allowed external parties read and write access to the impacted applications. Microsoft immediately corrected the misconfiguration and added additional authorization checks to address the issue and confirmed that no unintended access had occurred.

  • Microsoft Mitigates Outlook Elevation of Privilege Vulnerability
    on 14. März 2023 at 13:00

    May 9, 2023 update: Releases for Microsoft Products has been updated with the release of CVE-2023-29324 - Security Update Guide - Microsoft - Windows MSHTML Platform Security Feature Bypass Vulnerability March 24, 2023 update: Impact Assessment has been updated to a link to Guidance for investigating attacks using CVE-2023-23397 - Microsoft Security Blog.

  • Azure Kubernetes Service (AKS) Threat Hunting
    on 1. März 2023 at 8:00

    As more businesses shift away from running workloads on dedicated virtual machines to running them inside containers using workload orchestrators like Kubernetes, adversaries have become more interested in them as targets. Moreover, the benefits Kubernetes provides for managing workloads are also extended to adversaries. As adversaries leverage Kubernetes to run their workloads, their understanding of how these platforms work and can be exploited increases.

  • Configuring host-level audit logging for AKS VMSS
    on 1. März 2023 at 8:00

    This blog post runs you through how to enable and configure Linux audit logging on your Azure Kubernetes Service (AKS) Virtual Machine Scale Set (VMSS) using the Linux auditing subsystem, also known as auditd. Warning The information provided below is accurate as of the release date of this blog post (2023-03) and guidance may change in future.

  • First steps in CHERIoT Security Research
    on 28. Februar 2023 at 8:00

    At Microsoft, we invest a lot of time researching and investigating possibilities in our journey to memory safety. Because the massive majority of existing codebases are written in unsafe programming languages, the task of protecting legacy code is very important. Hardware solutions are an attractive approach because they introduce very powerful security properties with low overheads compared to purely software solutions.

  • New MSRC Blog Site
    on 8. Februar 2023 at 8:00

    We are excited to announce the release of the new Microsoft Security Response Center (MSRC) blog site. Please visit msrc.microsoft.com/blog/ starting February 9th, 2023, for all past and future MSRC blog content. In addition to the new URL, we have refreshed the site with a new look and improved site performance, search, categories, and tags to help users easily find content.

  • BlueHat 2023: Connecting the security research community with Microsoft
    on 6. Februar 2023 at 8:00

    We’re excited to welcome more than 400 members of the security research community from around the world to Redmond, Washington for BlueHat 2023. Hosted by the Microsoft Security Response Center (MSRC), BlueHat is where the security research community, and Microsoft security professionals, come together as peers to connect, share, learn, and exchange ideas in the interest of creating a safer and more secure world for all.

  • Microsoft Investigation - Threat actor consent phishing campaign abusing the verified publisher process
    on 31. Januar 2023 at 8:00

    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 AD.

  • Congratulations to the Top MSRC 2022 Q4 Security Researchers!
    on 26. Januar 2023 at 8:00

    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.

  • Microsoft resolves four SSRF vulnerabilities in Azure cloud services
    on 17. Januar 2023 at 8:00

    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.