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June 2014 Security Bulletin Webcast and Q&A
Today we published the June 2014 Security Bulletin webcast questions and answers page along with the webcast replay. We answered six questions on air, with the majority focusing on the updates for TCP and Internet Explorer. The transcript also includes a question we did not have time to answer on...
Introducing Enhanced Mitigation Experience Toolkit (EMET) 4.1
In June 2013, we released EMET 4.0 and customer response has been fantastic. Many customers across the world now include EMET as part of their defense-in-depth strategy and appreciate how EMET helps businesses prevent attackers from gaining access to computers systems. Today, we’re releasing a ne...
Assessing risk for the October 2013 security updates
Today we released eight security bulletins addressing 25 CVE’s. Four bulletins have a maximum severity rating of Critical while the other four have a maximum severity rating of Important. We hope that the table below helps you prioritize the deployment of the updates appropriately for your...
New Bounty Programs – One Week In
Two weeks ago, Microsoft made an important evolutionary step in our work with the security community when we announced our first-ever bounty programs for security issues. One week ago, the Windows 8.1 Preview and Internet Explorer 11 Preview became available for download, and the doors officially...
Microsoft Bug Bounty Program Year in Review: $13.8M in Rewards
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...
First steps in CHERIoT Security Research
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...
サイバーセキュリティ月間 2023
政府では、サイバーセキュリティに関する普及啓発強化のため、2 月 1 日から 3 月 18 日までを 「サイバーセキュ...
2023 年 1 月のセキュリティ更新プログラム (月例)
2023 年 1 月 10 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...
2022 年 12 月のセキュリティ更新プログラム (月例)
2022 年 12 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...
What’s the smallest variety of CHERI?
The Portmeirion project is a collaboration between Microsoft Research Cambridge, Microsoft Security Response Center, and Azure Silicon Engineering & Solutions. Over the past year, we have been exploring how to scale the key ideas from CHERI down to tiny cores on the scale of the cheapest...
Congratulations to the Top MSRC 2022 Q2 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 Q2 Security Researcher Leaderboard are: Yuki Chen...
Increasing Representation of Women in Security Research
Microsoft is committed to partnering with and supporting women in security research. Whether it’s growing women early in their career, or connecting people with mentors, we want to be a part of the journey. Throughout Women's History Month we intentionally sought opportunities to engage with wome...
Disclosure of Vulnerability in Azure Automation Managed Identity Tokens
On December 10, 2021, Microsoft mitigated a vulnerability in the Azure Automation service. Azure Automation accounts that used Managed Identitiestokens for authorization and an Azure Sandbox for job runtime and execution were exposed. Microsoft has not detected evidence of misuse of tokens...
Cyber threat activity in Ukraine: analysis and resources
UPDATE 27 Apr 2022: See Updated malware details and Microsoft security product detections below as discussed in the Special Report: Ukraine. UPDATE 02 MAR 2022: See Updated malware details and Microsoft security product detections below for additional insights and protections specific to the...
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...
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...
Coordinated disclosure of vulnerability in Azure Container Instances Service
Microsoft recently mitigated a vulnerability reported by a security researcher in the Azure Container Instances ACI that could potentially allow a user to access other customers’ information in the ACI service. Our investigation surfaced no unauthorized access to customer data. Out of an abundanc...
Announcing the Launch of the Azure SSRF Security Research Challenge
Microsoft is excited to announce the launch of a new, three-month security research challenge under the Azure Security Lab initiative. The Azure Server-Side Request Forgery SSRF Research Challenge invites security researchers to discover and share high impact SSRF vulnerabilities in Microsoft...
2021 年 8 月のセキュリティ更新プログラム (月例)
2021 年 8 月 11 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...
セキュリティ更新プログラム リリース スケジュール (2021 年)
2021 年のセキュリティ更新プログラムの公開予定日は下記のとおりです。更新プログラムの評価、テスト、適用の...
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...
BlueHat Seattle 2019 Call for Papers is Now Open!
2019 has seen a phenomenal BlueHatIL in February followed by a wildly successful BlueHat Shanghai in May… now it’s time to come back home for BlueHat Seattle! 2 days of hands-on technical training October 22-23, 2019 2 days of conference talks from industry-leading security researchers and cyber...
The Making of the Top 100 Researcher List
At Black Hat USA each year, we unveil the Top 100 Security Researcher list to reflect the amazing engagement we get from the community. During this period, we had several thousand researchers engage with the Microsoft Security Response Center MSRC. We appreciate all the partnership and coordinati...
Announcing Changes to Microsoft’s Mitigation Bypass Bounty
Today we’re announcing a change to the Mitigation Bypass Bounty that removes Control Flow Guard CFG from the set of in-scope mitigations. In this blog, we’ll provide additional background and explain why we’re making this change. Mitigation Bypass Bounty Background Microsoft started the Mitigatio...
June 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. MSRC team...
Mitigating speculative execution side channel hardware vulnerabilities
On January 3rd, 2018, Microsoft released an advisory and security updates related to a newly discovered class of hardware vulnerabilities involving speculative execution side channels known as Spectre and Meltdown that affect AMD, ARM, and Intel CPUs to varying degrees. If you haven’t had a chanc...
Speculative Execution Bounty Launch
Today, Microsoft is announcing the launch of a limited-time bounty program for speculative execution side channel vulnerabilities. This new class of vulnerabilities was disclosed in January 2018 and represented a major advancement in the research in this field. In recognition of that threat...
はい、これで見えますね: ファイルレス マルウェアをさらけ出す
本記事は、Microsoft Secure ブログ “Now you see me: Exposing fileless malware” 2018 年 1 月 24 日 米国時間公開 を翻...
Windows Defender Exploit Guard: 攻撃表面を縮小して次世代型マルウェアに対抗する
本記事は、Windows Security のブログ “Windows Defender Exploit Guard: Reduce the attack surface against next-generation malware” 2017 年 10 月 23 日 米国...
Extending the Microsoft Office Bounty Program
Microsoft announces the extension of the Microsoft Office Bounty Program through December 31, 2017. This extension is retroactive for any cases submitted during the interim. The engagement we have had with the security community has been great and we are looking to continue that collaboration on...
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...
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...
June 2017 security update release
Microsoft releases additional updates for older platforms to protect against potential nation-state activity Today, as part of our regular Update Tuesday schedule, we have taken action to provide additional critical security updates to address vulnerabilities that are at heightened risk of...
June 2017 security update release
Microsoft releases additional updates for older platforms to protect against potential nation-state activity Today, as part of our regular Update Tuesday schedule, we have taken action to provide additional critical security updates to address vulnerabilities that are at heightened risk of...
September 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 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...
Triaging the exploitability of IE/EDGE crashes
Introduction Both Internet Explorer IE and Edge have seen significant changes in order to help protect customers from security threats. This work has featured a number of mitigations that together have not only rendered classes of vulnerabilities not-exploitable, but also dramatically raised the...
July 2015 Security Updates
Today we released security updates for Microsoft Windows, Microsoft Office, Microsoft SQL Server, and Internet Explorer. As a best practice, we encourage customers to apply security updates as soon as they are released. For more information about this month’s security updates and advisories visit...
March 2015 Updates
Today, as part of Update Tuesday, we released 14 security bulletins to address vulnerabilities in Microsoft Windows, Microsoft Office, Microsoft Exchange, and Internet Explorer. We encourage customers to apply all of these updates. For more information about this month’s security updates, includi...
Advance Notification Service for the October 2014 Security Bulletin Release
Today, we provide advance notification for the release of nine Security Bulletins. Three of these updates are rated Critical, five are rated as Important, and one is rated Moderate in severity. These updates are for Microsoft Windows, Internet Explorer, Office, .NET Framework, and ASP.NET. As per...
The September 2014 Security Updates
Today, as a part of our regular Update Tuesday process, we released four security bulletins – one rated Critical and three rated Important in severity – to address 42 Common Vulnerabilities & Exposures CVEs in Microsoft Windows, Internet Explorer, .NET Framework, and Lync Server. We encourage you...
Announcing the Enhanced Mitigation Experience Toolkit (EMET) 5.0 Technical Preview
I’m here at the Moscone Center, San Francisco, California, attending the annual RSA Conference USA 2014. There’s a great crowd here and many valuable discussions. Our Microsoft Security Response Center MSRC engineering teams have been working hard on the next version of EMET, which helps customer...
Antimalware Support for Windows XP and the January 2014 Security Bulletin Webcast and Q&A
Today we’re publishing the January 2014 Security Bulletin Webcast Questions & Answers page. We answered 16 questions in total, with the majority of questions focusing on the Dynamics AX bulletin MS14-004, the update for Microsoft Word MS14-001 and the re-release of the Windows 7 and Windows Serve...
Predictions for 2014 and the December 2013 Security Bulletin Webcast, Q&A, and Slide Deck
Today we’re publishing the December 2013 Security Bulletin Webcast Questions & Answers page. We answered 17 questions in total, with the majority of questions focusing on the Graphics Component bulletin MS13-096, Security Advisory 2915720 and Security Advisory 2905247. We also wanted to note a ne...
Security and policy surrounding bring your own devices (BYOD)
As the proliferation of devices continues to capture the imagination of consumers, and has ignited what is referred to as bring your own device BYOD revolution, many IT departments across the globe are now facing increased security considerations. While organizations encourage BYOD for cost savin...
10 years of Update Tuesdays
On October 1, 2003, Microsoft announced it would move to a monthly security bulletin cadence. Today, marks 10 years since that first monthly security update. We looked at many ways to improve our security preparedness and patch timing was the number one customer request. Your feedback was clear a...
A new policy for store apps and the July 2013 security updates
There are those I’ve met who think my life is something akin to the classic comedy Groundhog Day. No, I don’t wake up to the musical stylings of Sonny and Cher each morning, but month after month after month, the second Tuesday rolls around and I’m involved in releasing security updates...
How Brad Schlintz built a life of freedom and impact through security research
At Microsoft Security Response Center MSRC, we celebrate the diverse paths that bring researchers to our community. Brad Schlintz’s story is one of curiosity, resilience, and a relentless drive to learn, spanning rural beginnings, career pivots, and a life shaped by both technology and travel. In...
Celebrating ten years of the Microsoft Bug Bounty program and more than $60M awarded
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...
Microsoft mitigates Power Platform Custom Code information disclosure vulnerability
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...