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Draft of Microsoft Security Servicing Commitments for Windows
Updated September 10, 2018 The Servicing Criteria for Windows has transitioned to an official document and can be found at the link below. Microsoft thanks the members of the research community who provided feedback on the draft copy. Microsoft Security Servicing Criteria for Windows...
February 2018 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...
February 2018 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...
December 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...
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...
EnglishmansDentist Exploit Analysis
Introduction We are continuing our series of blog posts dissecting the exploits released by ShadowBrokers in April 2017. After the first two posts about the SMB exploits known as EternalChampion and EternalSynergy, we’ll move this time to analyze a different tool and we’ll focus on the exploit...
Petya ランサムウェア攻撃に対する Windows 10 プラットフォームのレジリエンス
本記事は、MMPC のブログ “Windows 10 platform resilience against the Petya ransomware attack” 2017 年 6 月 29 日 米国時間公開 の一...
Eternal Champion Exploit Analysis
Recently, a group named the ShadowBrokers published several remote server exploits targeting various protocols on older versions of Windows. In this post we are going to look at the EternalChampion exploit in detail to see what vulnerabilities it exploited, how it exploited them, and how the late...
マイクロソフト報奨金プログラムの拡張 – Windows 用の Office Insider ビルドに関する報奨金プログラム
本記事は、Microsoft Security Response Center のブログ “Announcing the new Bug Bounty Program for Office Insider Builds on Windows”...
Office 365 のセキュリティ研究者の皆さまへ: 2017 年 3 月 ～ 5 月は報奨金が 2 倍になります
本記事は、Microsoft Security Response Center のブログ “Office 365 security researchers: Double your bounties March-May 2017” 2017 年 3 月 1 日 米国時間...
Adobe Flash Player の脆弱性を修正するセキュリティ更新プログラムを定例外で公開
本日、セキュリティ情報 MS17-005「Adobe Flash Player のセキュリティ更新プログラム」を公開しました。...
January 2017 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...
Moving Beyond EMET
EMET – Then and Now Microsoft’s Trustworthy Computing initiative was 7 years old in 2009 when we first released the Enhanced Mitigation Experience Toolkit EMET. Despite substantial improvements in Windows OS security during that same period, it was clear that the way we shipped Windows at the tim...
April 2015 Updates
Today, as part of Update Tuesday, we released 11 security bulletins. We encourage customers to apply all of these updates. For more information about this month’s security updates, including the detailed view of the Exploitability Index XI, visit the Microsoft Bulletin Summary webpage. If you are...
February 2015 Updates
Today, as part of Update Tuesday, we released nine security bulletins– three rated Critical and six rated Important in severity, to address 56 unique Common Vulnerabilities and Exposures CVEs in Microsoft Windows, Microsoft Office, Internet Explorer, and Microsoft Server software. We encourage yo...
January 2015 Updates
Today, as part of Update Tuesday, we released eight security updates– one rated Critical and seven rated Important in severity, to address eight unique Common Vulnerabilities and Exposures CVEs in Microsoft Windows. We encourage you to apply all of these updates. For more information about this...
A Call for Better Coordinated Vulnerability Disclosure
For years our customers have been in the trenches against cyberattacks in an increasingly complex digital landscape. We’ve been there with you, as have others. And we aren’t going anywhere. Forces often seek to undermine and disrupt technology and people, attempting to weaken the very devices and...
BlueHat v14 is almost here
It’s that time of year and BlueHat v14 is almost upon us. As always, BlueHat is an opportunity for us to bring the brightest minds in security together, both internal and external, to discuss and tackle some of the hardest problems facing the industry today. Through this conference, our engineeri...
Theoretical Thinking and the June 2014 Bulletin Release
As security professionals, we are trained to think in worst-case scenarios. We run through the land of the theoretical, chasing “what if” scenarios as though they are lightning bugs to be gathered and stashed in a glass jar. Most of time, this type of thinking is absolutely the correct thing for...
Advance Notification Service for the May 2014 Security Bulletin Release
Today we provide Advance Notification Service ANS for the release of eight bulletins, two rated Critical and six rated Important in severity. These updates will address vulnerabilities for .NET Framework, Office, Internet Explorer, and Windows. As we do every month, we’ve scheduled the security...
MBSA 2.3 and the November 2013 Security Bulletin Webcast, Q&A, and Slide Deck
Today we’re publishing the November 2013 Security Bulletin Webcast Questions & Answers page. The majority of questions focused on the ActiveX Kill Bits bulletin MS13-090 and the advisories. We also answered a few general questions that were not specific to any of this month’s updates, but that ma...
Microsoft Releases Security Advisory 2887505
Today we released Security Advisory 2887505 regarding an issue that affects Internet Explorer. There are only reports of a limited number of targeted attacks specifically directed at Internet Explorer 8 and 9, although the issue could potentially affect all supported versions. This issue could...
Assessing risk for the September 2013 security updates
Today we released thirteen security bulletins addressing 47 CVE’s. Four bulletins have a maximum severity rating of Critical while the other ten have a maximum severity rating of Important. We hope that the table below helps you prioritize the deployment of the updates appropriately for your...
July 2013 Security Bulletin Webcast, Q&A, and Slide Deck
Today we’re publishing the July 2013 Security Bulletin Webcast Questions & Answers page. During the webcast, we fielded 10 questions covering all updates. All questions are included on the Q&A page. We invite our customers to join us for the next scheduled webcast on Wednesday, August 14th at 11...
Improved cryptography infrastructure and the June 2013 bulletins
It was just over one year ago, May 28, 2012, to be exact, that I transitioned from running active MSRC cases and writing bulletins to my current role managing software security incidents. A lot has changed in that year- and I’ve dealt with some interesting issues during my tenure - but our goal o...
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:...
Azure App Service Linux source repository exposure
MSRC was informed by Wiz.io, a cloud security vendor, under Coordinated Vulnerability Disclosure CVD of an issue where customers can unintentionally configure the .git folder to be created in the content root, which would put them at risk for information disclosure. This, when combined with an...
Update on the vulnerability in the Azure Cosmos DB Jupyter Notebook Feature
On August 12, 2021, a security researcher reported a vulnerability in the Azure Cosmos DB Jupyter Notebook feature that could potentially allow a user to gain access to another customer's resources by using the account's primary read-write key. We mitigated the vulnerability immediately. Our...
Announcing the Top MSRC 2021 Q2 Security Researchers - Congratulations!
We’re excited to announce the top contributing researchers for the 2021 Second Quarter Q2! Congratulations to all the researchers recognized in this quarter’s leaderboard and thank you to everyone who continues to help secure our customers and the...
2021 年 7 月のセキュリティ更新プログラム (月例)
2021 年 7 月 14 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...
Microsoft Bug Bounty Programs Year in Review: $13.6M in Rewards
Partnering with the security research community is an important part of Microsoft’s holistic approach to defending against security threats. Bug bounty programs are one part of this partnership. By discovering and reporting vulnerabilities to Microsoft through Coordinated Vulnerability Disclosure...
Investigating and Mitigating Malicious Drivers
The security landscape continues to rapidly evolve as threat actors find new and innovative methods to gain access to environments across a wide range of vectors. As the industry moves closer to the adoption of a Zero Trust security posture with broad and layered defenses, we remain committed to...
サイバーセキュリティ月間期間の取り組みのおさらい
3 月 18 日に今年のサイバーセキュリティ月間が終わりました。この期間中、日本セキュリティチームは、Mic...
Top MSRC 2020 Q4 Security Researchers – Congratulations!
We’re excited to announce the top contributing researchers for the 2020 Fourth Quarter Q4! Congratulations to all of the researchers who made this quarter’s leaderboard and a huge thank you to everyone who continues to help secure our customers and the ecosystem. The top three researchers of the...
Security Update Guide Supports CVEs Assigned by Industry Partners
Hi Folks, This month we are introducing a new data element for each CVE in the Security Update Guide, called Assigning CNA. First let me back up a bit and give some information about the CVE program. The purpose of a CVE is to uniquely identify a cybersecurity vulnerability. The CVE program was...
[IT 管理者向け] CVSS を読み解いて脆弱性をより正しく理解する
新しいバージョンのセキュリティ更新プログラムについては下記の関連ブログもご覧ください。 「新しいセキュ...
Security Update Guide: Let's keep the conversation going
Hi Folks, We want to continue to highlight changes we’ve made to our Security Update Guide. We have received a lot of feedback, much of which has been very positive. We acknowledge there have been some stability problems and we are actively working through reports of older browsers not being able...
Announcing the Top MSRC 2020 Q3 Security Researchers
Following the MSRC’s 2020 Most Valuable Security Researchers announced during this year’s Black Hat, we’re excited to announce the top contributing researchers for the 2020 Third Quarter Q3! The top three researchers of the 2020 Q3...
Security Analysis of CHERI ISA
Is it possible to get to a state where memory safety issues would be deterministically mitigated? Our quest to mitigate memory corruption vulnerabilities led us to examine CHERI Capability Hardware Enhanced RISC Instructions, which provides memory protection features against many exploited...
Control Flow Guard for Clang/LLVM and Rust
As part of our ongoing efforts towards safer systems programming, we’re pleased to announce that Windows Control Flow Guard CFG support is now available in the Clang C/C++ compiler and Rust. What is Control Flow Guard? CFG is a platform security technology designed to enforce control flow...
Black Hat 2020: See you in the Cloud!
It hardly feels like summer without the annual trip to Las Vegas for Black Hat USA. With this year’s event being totally cloud based, we won’t have the chance to catch up with security researchers, industry partners, and customers in person, an opportunity we look forward to every year. We’ll sti...
Security Update Validation Program (SUVP) のご紹介
本記事は、What is the Security Update Validation Program? の日本語抄訳です。 Security Update Validation Program は、マイクロソフトが毎月第二火曜 米国時間...
Machine Learning Security Evasion Competition 2020 Invites Researchers to Defend and Attack
Machine learning ML is an increasingly valuable tool in cyber security as adversaries continually evolve their tactics and techniques to evade detection. As machine learning has advanced and sophisticated ML models have been developed to assist security professionals in protecting the cloud,...
Machine Learning Security Evasion Competition 2020 Invites Researchers to Defend and Attack
Machine learning ML is an increasingly valuable tool in cyber security as adversaries continually evolve their tactics and techniques to evade detection. As machine learning has advanced and sophisticated ML models have been developed to assist security professionals in protecting the cloud,...
Solving Uninitialized Stack Memory on Windows
This blog post outlines the work that Microsoft is doing to eliminate uninitialized stack memory vulnerabilities from Windows and why we’re on this path. This blog post will be broken down into a few parts that folks can jump to: Uninitialized Memory Background Potential Solutions to Uninitialize...
Customer Guidance for the Dopplepaymer Ransomware
Microsoft has been investigating recent attacks by malicious actors using the Dopplepaymerransomware. There is misleading information circulating about Microsoft Teams, along with references to RDP BlueKeep, as ways in which this malware spreads. Our security research teams have investigated and...
Customer Guidance for the Dopplepaymer Ransomware
Microsoft has been investigating recent attacks by malicious actors using the Dopplepaymerransomware. There is misleading information circulating about Microsoft Teams, along with references to RDP BlueKeep, as ways in which this malware spreads. Our security research teams have investigated and...
November 2019 security updates are available!
We have released the November security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide. As a reminder,...
Microsoft Identity Bounty Improvements
Microsoft is continually improving our existing bounty programs. Today we’re happy to share the latest updates to the Microsoft Identity Bounty. Originally launched in July 2018, the Microsoft Identity bounty program has helped build a partnership with the security research community to improve t...
Building the Azure IoT Edge Security Daemon in Rust
Azure IoT Edge is an open source, cross platform software project from the Azure IoT team at Microsoft that seeks to solve the problem of managing distribution of compute to the edge of your on-premise network from the cloud. This post explains some of the rationale behind our choice of Rust as t...