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Improvements in Security Update Notifications Delivery – And a New Delivery Method
At MSRC, we are passionate about ensuring our customers have a positive experience when they use the Microsoft Security Update Guide SUG. A big part of improving that experience is ensuring that customers have timely and easily accessible notifications. As such we have two important announcements...
Congratulations to the MSRC 2022 Most Valuable Researchers!
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...
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...
On-Premises Servers Products are Here! Introducing the Applications and On-Premises Servers Bug Bounty Program
Microsoft is excited to announce the addition of Exchange on-premises, SharePoint on-premises, and Skype for Business on-premises to the Applications and On-Premises Servers Bounty Program. Through this expanded program, we encourage researchers to discover and report high-impact security...
Randomizing the KUSER_SHARED_DATA Structure on Windows
Windows 10 made a lot of improvements in Kernel Address Space Layout Randomization KASLR that increases the cost of exploitation, particularly for remote code execution exploits. Many kernel virtual address space VAS locations including kernel stacks, pools, system PTEs etc. are randomized. A...
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...
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...
Building Faster AMD64 Memset Routines
Over the past several years, Microsoft has rolled out several changes that result in more memory being zeroed. These mitigations include: The InitAll mitigation which zeros most stack variables Switching most Microsoft kernel code over to the ExAllocatePool2/ExAllocatePool3 API’s which zero memor...
Local Administrator Password Solution (LAPS) 導入ガイド (日本語版)
Active Directory 管理者のみなさん、Local Administrator Password Solution LAPS ツールはご存じですか? LAPS ツールは、Active Directory AD に参加して...
Microsoft Joins Open Source Security Foundation
Microsoft has invested in the security of open source software for many years and today I’m excited to share that Microsoft is joining industry partners to create the Open Source Security Foundation OpenSSF, a new cross-industry collaboration hosted at the Linux Foundation. The OpenSSF brings...
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...
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: Amplifying the power of defensive partnerships around the world
Earlier this week BlueHat Shanghai brought together security researchers and hundreds of cybersecurity professionals from China and across Asia to explore the latest topics in cybersecurity research. Including presentations from Qihoo 360, Baidu, Alibaba and the Chinese Academy of Sciences, BlueH...
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...
Inside the MSRC – How we recognize our researchers
This is the first of a series of blog entries to give some insight into the Microsoft Security Response Center MSRC business and how we work with security researchers and vulnerability reports. The Microsoft Security Response Center actively recognizes those security researchers who help us to...
EnglishmansDentist Exploit Analysis
Introduction 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 t...
Mitigating the LdrHotPatchRoutine DEP/ASLR bypass with MS13-063
Today we released MS13-063 which includes a defense in depth change to address an exploitation technique that could be used to bypass two important platform mitigations: Address Space Layout Randomization ASLR and Data Execution Prevention DEP. As we’ve described in the past, these mitigations pl...
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...
Jailbreaking is (mostly) simpler than you think
Content warning: This blog post contains discussions of sensitive topics. These subjects may be distressing or triggering for some readers. Reader discretion is advised. Today, we are sharing insights on a simple, optimization-free jailbreak method called Context Compliance Attack CCA, that has...
Introducing the MSRC Researcher Resource Center
Microsoft partners with the global security researcher community to surface and report security vulnerabilities to protect all users of Microsoft products and services. Researcher submissions help us address immediate threats while also identifying trends and insights to holistically improve the...
Announcing The BlueHat Podcast: Listen and Subscribe Now!
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, an...
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...
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,...
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...
Hunting for Cobalt Strike: Mining and plotting for fun and profit
Introduction Cobalt Strike is a commercial Command and Control framework built by Helpsystems. You can find out more about Cobalt Strike on the MITRE ATT&CK page. But it can also be used by real adversaries. In this post we describe how to use RiskIQ and other Microsoft technologies to see if you...
BlueHat 2023 Call for Papers is Now Open!
For nearly 20 years, BlueHat has been where the security research community, and Microsoft security professionals come together as peers, to share, debate, challenge, learn, and exchange ideas in the interest of creating a safer and more secure world for all. We are extremely excited to announce...
Defense-in-Depth Updates for Azure Identity libraries and Azure Key Vault libraries within Azure SDK plus Best Practice Implementation Guidance
Summary Today, Microsoft released new versions of the Azure Key Vault libraries and Azure Identity libraries as part of the Azure Software Development Kit SDK that includes defense-in-depth feature improvements. We also published best practice guidance to help protect applications and services th...
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...
Congratulations and New Swag Awards for the Top MSRC 2022 Q1 Security Researchers!
Today, we are excited to recognize this quarter’s Microsoft Researcher Recognition Program leaderboard and share new swag awards and improvements to the leaderboard. Congratulations and thank you to everyone for your hard work and continued partnership to secure customers. The top three researche...
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...
マイクロソフトのサポートを装った詐欺にご注意ください
パソコンやタブレットを利用している際に、突然、“ウイルスに感染した” といった内容を示す画面とともに、...
BlueHat is Back!
After a short hiatus, BlueHat is coming back with a vengeance! And we’ve got big plans for the entire researcher community. But first, I must apologize. It’s been a while since you have heard from us. We didn’t have BlueHat 2020 or 2021, and we know that was disappointing. It was partly due to th...
Building Faster AMD64 Memset Routines
Over the past several years, Microsoft has rolled out several changes that result in more memory being zeroed. These mitigations include: The InitAll mitigation which zeros most stack variables Switching most Microsoft kernel code over to the ExAllocatePool2/ExAllocatePool3 API’s which zero memor...
February 2020 security updates are available
We have released the February 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...
December 2019 security updates are available
We have released the December 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,...
Vulnerability hunting with Semmle QL: DOM XSS
In two previous blog posts part 1 and part 2, we talked about using Semmle QL in C and C++ codebases to find vulnerabilities such as integer overflow, path traversal, and those leading to memory corruption. In this post, we will explore applying Semmle QL to web security by hunting for one of...
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...
April 2019 Security Update Release
Today, we released 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 on the Security Update Guide. Tags Security Advisory Securi...
November 2018 Security Update Release
Today, we released 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 on the Security Update Guide...
Should You Send Your Pen Test Report to the MSRC?
Every day, the Microsoft Security Response Center MSRC receives vulnerability reports from security researchers, technology/industry partners, and customers. We want those reports, because they help us make our products and services more secure. High-quality reports that include proof of concept,...
2020 年 IE, Edge で TLS 1.0, 1.1 での接続無効化。確認を！
こんにちは、垣内ゆりかです。 マイクロソフトでは、Transport Layer Security TLS 1.0, 1.1 の利用を廃止し、より安全...
セキュリティ更新プログラム リリース スケジュール (2018 年)
概要 概要 セキュリティ更新プログラムは通常、米国日付の毎月第 2 火曜日に公開します。日本では、時差の関係...
Microsoft Security Servicing Criteria for Windows
One of our goals in the Microsoft Security Response Center MSRC is to be more transparent with security researchers and our customers on the criteria we use for determining when we intend to address a reported vulnerability through a security update. Our belief is that improving transparency on...
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...
Triaging a DLL planting vulnerability
DLL planting aka binary planting/hijacking/preloading resurface every now and then, it is not always clear on how Microsoft will respond to the report. This blog post will try to clarify the parameters considered while triaging DLL planting issues. It is well known that when an application loads ...
August 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...
Announcing the Windows Bounty Program
Windows 10 represents the best and newest in our strong commitment to security with world-class mitigations. One of Microsoft’s longstanding strategies toward improving software security involves investing in defensive technologies that make it difficult and costly for attackers to find, exploit...
Announcing the new Bug Bounty Program for Office Insider Builds on Windows
We’ve engineered Office to be secure by design and continually invest in enhancing its security capabilities. In the spirit of maintaining a high security bar in Office, we’re launching the Bug Bounty Program for Office Insider Builds on Windows. The Office Bug Bounty Program complements our...
Assessing Risk for the October 2014 Security Updates
Today we released eight security bulletins addressing 24 unique CVE’s. Three bulletins have a maximum severity rating of Critical, and five have a maximum severity rating of Important. This table is designed to help you prioritize the deployment of updates appropriately for your environment...
Assessing risk for the April 2014 security updates
Today we released four security bulletins addressing 11 unique CVE’s. Two bulletins have a maximum severity rating of Critical while the other two have a maximum severity rating of Important. We hope that the table below helps you prioritize the deployment of the updates appropriately for your...