2022 年 4 月のセキュリティ更新プログラム (月例)

2022 年 4 月 12 日（米国時間）、マイクロソフトは、マイクロソフト製品に影響する脆弱性を修正するために、セキ...

Randomizing the KUSER_SHARED_DATA Structure on Windows

Opps, this post exists, but was actually published 4/5/2022. Were navigating you to the correct page now. If that doesnt work click the link below: Randomizing the KUSERSHAREDDATA Structure on Windows – Microsoft Security Response Center...

Researcher Spotlight: Cyber Viking Nate Warfield is Here to Help

“There are few jobs where I can say, I make two billion people more secure on the internet every single day.” Childhood Look: Goth kid, all in black Current Look: Cyber Viking Childhood hobby: Head banging to Metallica, Marilyn Manson, and Guns N’ Roses Current hobby: n0x08 DJ’s Live events aroun...

Power Platform is Here! Introducing the Dynamics 365 and Power Platform Bug Bounty Program

Microsoft is excited to announce the addition of Power Platform to the newly rebranded Dynamics 365 and Power Platform Bounty Program. Through this expanded program, we encourage researchers to discover and report high impact security vulnerabilities they may find in the new Power Platform scope ...

Attacking the VM Worker Process

In the past year we invested a lot of time making Hyper-V research more accessible to everyone. Our first blog post, “First Steps in Hyper-V Research”, describes the tools and setup for debugging the hypervisor and examines the interesting attack surfaces of the virtualization stack components. W...

Inside the MSRC – Customer-centric incident response

The Microsoft Security Response Center MSRC is an integral part of Microsoft’s Cyber Defense Operations Center CDOC that brings together security response experts from across the company to help protect, detect, and respond to threats in real-time. Staffed with dedicated teams 24x7, the CDOC has...

Microsoft’s Top 100 Security Researchers – Black Hat 2018 Edition

This morning we are excited to unveil the security researcher leaderboard at the Black Hat Security Conference. This list recognizes the top security researchers who have contributed research to the Microsoft products and services. If you are curious on how we build the list, check out our blog...

BlueHat v18 Announced & Call for Papers Opens

We are back! Microsoft is excited to announce the next installment of the BlueHat Security Conference – BlueHat v18. We will be holding the event at Microsoft’s headquarter campus September 25-27, 2018. This year we are adding the option for workshops and networking on the first day prior to the...

Windows Defender Advanced Threat Protection の機械学習: 未知の侵入アクティビティの検出

本記事は、Windows Security のブログ “Windows Defender ATP machine learning: Detecting new and unusual breach activity” 2017 年 8 月 3 日 米...

Clarifying the behavior of mandatory ASLR

Last week, the CERT/CC published an advisory describing some unexpected behavior they observed when enabling system-wide mandatory Address Space Layout Randomization ASLR using Windows Defender Exploit Guard WDEG and EMET on Windows 8 and above. In this blog post, we will explain the configuratio...

Extending Microsoft Edge Bounty Program

Over the past 10 months, we’ve paid out more than $200,000 USD in bounties to researchers reporting vulnerabilities through the Microsoft Edge Bounty Program. Partnering with the research community has helped improve Microsoft Edge security, and to continue this collaboration, today were extendin...

September 2014 Security Bulletin Release Webcast and Q&A

Today we’re publishing the September 2014 Security Bulletin Webcast Questions & Answers page. We fielded four questions on various topics during the webcast, with specific bulletin questions focusing primarily on Internet Explorer MS14-052 and a question about the Windows Update client. We invite...

Software Defense: mitigating heap corruption vulnerabilities

Heap corruption vulnerabilities are the most common type of vulnerability that Microsoft addresses through security updates today. These vulnerabilities typically occur as a result of programming mistakes that make it possible to write beyond the bounds of a heap buffer a spatial issue or to plac...

Weaponizing cross site scripting: When one bug isn’t enough

Cross-Site Scripting XSS is often underestimated as a minor vulnerability. In reality, XSS can open the door to more severe attacks when combined with other vulnerabilities...

Zero Day Quest 2025: $1.6 million awarded for vulnerability research

This month, the Microsoft Security Response Center recently welcomed some of the world’s most talented security researchers at Microsoft’s Zero Day Quest, the largest live hacking competition of its kind. The inaugural event challenged the security community to focus on the highest-impact securit...

Announcing the CVRF API 3.0 upgrade

At the Microsoft Security Response Center, we are committed to continuously improving the security and performance of our services to meet the evolving needs of our customers. We are excited to announce the rollout of the latest version of our Common Vulnerability Reporting CVRF API. This update...

Microsoft resolves four SSRF vulnerabilities in Azure cloud services

Summary 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...

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 Zha...

Microsoft Storage Location における構成の誤りに関する調査

本ブログは、Investigation Regarding Misconfigured Microsoft Storage Locationの抄訳版です。最新の情報は原文を参照し...

Microsoft Office to publish symbols starting August 2022

We are excited to announce that Microsoft Office will begin publishing Office symbols for Windows via the Microsoft Public Symbol Server on August 9th 2022. The publication of Office symbols is a part of our continuing investment to improve security and performance for customers and partners. Key...

Exploring a New Class of Kernel Exploit Primitive

The security landscape is dynamic, changing often and as a result, attack surfaces evolve. MSRC receives a wide variety of cases spanning different products, bug types and exploit primitives. One particularly interesting primitive we see is an arbitrary kernel pointer read. These often happen whe...

Congratulations to the Top MSRC 2021 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 2021 Q4 Security Researcher Leaderboard are: rezer0dai...

Point and Print Default Behavior Change

Our investigation into several vulnerabilities collectively referred to as “PrintNightmare” has determined that the default behavior of Point and Print does not provide customers with the level of security required to protect against potential attacks. Today, we are addressing this risk by changi...

Microsoft Internal Solorigate Investigation - Final Update

We believe the Solorigate incident is an opportunity to work with the community, to share information, strengthen defenses and respond to attacks. We have now completed our internal investigation into the activity of the actor and want to share our findings, which confirm that we found no evidenc...

An intern's experience with Rust

Over the course of my internship at the Microsoft Security Response Center MSRC, I worked on the safe systems programming languages SSPL team to promote safer languages for systems programming where runtime overhead is important, as outlined in this blog. My job was to port a security critical...

We need a safer systems programming language

In our first post in this series, we discussed the need for proactively addressing memory safety issues. Tools and guidance are demonstrably not preventing this class of vulnerabilities; memory safety issues have represented almost the same proportion of vulnerabilities assigned a CVE for over a...

2019 年 6 月のセキュリティ更新プログラム (月例)

2019 年 6 月 12 日 日本時間、マイクロソフトは以下のソフトウェアのセキュリティ更新プログラムを公開しました。...

BlueHat Shanghai 2019 Call for Papers is Now Open!

We know security experts with diverse skills and experiences are found around the world. This year, the BlueHat Security Conference is coming to Shanghai! BlueHat Shanghai 2019 will take place on May 29-30 at W Shanghai - The Bund. We want to provide a venue for security researchers to come...

November 2017 security update release

Today, we released security updates to provide additional protections against malicious attackers. By default, Windows 10 receives these updates automatically, and for customers running previous versions, we recommend they turn on automatic updates as a best practice. More information about this...

Advanced Threat Analytics プレイブックを使って攻撃をシミュレーションし検出する方法

本記事は、Microsoft Advanced Threat Analytics Team のブログ “How to simulate and detect attacks with the Advanced Threat Analytics Playbook” 2017 年 2 月 23...

July 2016 security update release

Today we released security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to apply security updates as soon as they are released. More information about this month’s security updates and advisories can be found in the Security...

May 2015 Updates

Today, as part of Update Tuesday, we released 13 security bulletins. We encourage customers to apply all of these updates. For more information about this month’s security updates, including a detailed view of the Exploitability Index XI, visit the Microsoft Bulletin Summary webpage. If you are n...

Assessing risk for the November 2013 security updates

Today we released eight security bulletins addressing 19 CVE’s. Three bulletins have a maximum severity rating of Critical while the other five have a maximum severity rating of Important. We hope that the table below helps you prioritize the deployment of the updates appropriately for your...

Heart of Blue Gold – Announcing New Bounty Programs

Our Philosophy At the heart of our community outreach programs, we’ve always had the same philosophy: help increase the win-win between Microsoft’s customers and the security research community. We have evolved and deepened our relationships with this community since the earliest days of...

June 2013 Security Bulletin Webcast, Q&A, and Slide Deck

Today we’re publishing the June 2013 Security Bulletin Webcast Questions & Answers page. We fielded three questions during the webcast, with specific questions focusing primarily on Windows Print Spooler MS13-050, Microsoft Office MS13-051, and the security advisory addressing digital certificate...

Exploring the cloud: How Matthew Jensen approaches Azure security research

For Matthew Jensen, a career in security wasn't part of some carefully planned roadmap...

RedirectionGuard: Mitigating unsafe junction traversal in Windows

As attackers continue to evolve, Microsoft is committed to staying ahead by not only responding to vulnerabilities, but also by anticipating and mitigating entire classes of threats. One such threat, filesystem redirection attacks, has been a persistent vector for privilege escalation. In respons...

New MSRC Blog Site

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 si...

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 i...

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...

潜在的な Service Fabric Explorer (SFX) v1 Web クライアント リスクに関する認識とガイダンス

本ブログは、Awareness and guidance related to potential Service Fabric Explorer SFX v1 web client riskの抄訳版です。最新の情報は原文を参照し...

Azure Identity SDK と Azure Key Vault SDKに関する多層防御のためのアップデートとベストプラクティスの実装ガイダンス

本ブログは、Defense-in-Depth Updates for Azure Identity SDK and Azure Key Vault SDK plus Best Practice Implementation Guidance の抄訳版です。最新の情報は...

2022 年 9 月のセキュリティ更新プログラム (月例)

2022 年 9 月 13 日 米国時間、マイクロソフトは、マイクロソフト製品に影響する脆弱性を修正するために、セキ...

Curious, Innovative, Creative, Community Driven: Meet Cyb3rWard0g, Roberto Rodriquez

When I grow up I want to be? Dancer or a veterinarian Happiest memories: Tearing up the dance floor at weddings and playing soccer in the streets of Lima, Peru Previous Job roles : Mopped floors for McDonalds, packed boxes at an Avon warehouse, Manager at Olive Garden, Beer taster/server and then...

セキュリティ更新プログラム ガイドの通知システム : 今すぐプロファイルを作成しましょう

本ブログは、Security Update Guide Notification System News: Create your profile now の抄訳版です。最新の情報は原文を参照してください。 セキ...

Microsoft Office to publish symbols starting August 2022

We are excited to announce that Microsoft Office will begin publishing Office symbols for Windows via the Microsoft Public Symbol Server on August 9th 2022. The publication of Office symbols is a part of our continuing investment to improve security and performance for customers and partners. Key...

Azure Storage SDK でのクライアントサイド暗号化におけるパディング オラクル の脆弱性を軽減

本ブログは、Mitigation for Azure Storage SDK Client-Side Encryption Padding Oracle Vulnerability の抄訳版です。最新の情報は原文を参照してください。...

A Man of Action: Meet Callum Carney

Hidden Talents : He was a competitive swimmer for many years. Instrument of Choice : His fingers were made for the keyboard, but he used to play the trumpet. 5 pieces of entertainment for the rest of his life : The Office, World War Z, The Matrix, Breaking Bad, The Thick of It...

2022 年 3 月のセキュリティ更新プログラム (月例)

2022 年 3 月 8 日（米国時間）、マイクロソフトは、マイクロソフト製品に影響する脆弱性を修正するために、セキ...

Researcher Spotlight: Dr. Nestori Syynimaa’s Constant Mission Protecting Identities

"When you find the things I find, they really matter. They affect everybody’s security.” Currently streaming: The Expanse and Lost in Space on Netflix Currently listening to: Amorphis, Architects, and Killswitch Engage Currently running: 130 kilometers or 80 miles a month Currently playing:...