Reflecting on 20 years of Patch Tuesday

Source: https://msrc.microsoft.com/blog/2023/11/reflecting-on-20-years-of-patch-tuesday/ 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 … Read more

Microsoft guidance regarding credentials leaked to GitHub Actions Logs through Azure CLI

Source: https://msrc.microsoft.com/blog/2023/11/microsoft-guidance-regarding-credentials-leaked-to-github-actions-logs-through-azure-cli/ Summary 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 … Read more

Congratulations to the Top MSRC 2023 Q3 Security Researchers!

Source: https://msrc.microsoft.com/blog/2023/10/congratulations-to-the-top-msrc-2023-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 … Read more

Microsoft Response to Distributed Denial of Service (DDoS) Attacks against HTTP/2

Source: https://msrc.microsoft.com/blog/2023/10/microsoft-response-to-distributed-denial-of-service-ddos-attacks-against-http/2/ Summary 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 … Read more

Cybersecurity Awareness Month 2023: Elevating Security Together

Source: https://msrc.microsoft.com/blog/2023/10/cybersecurity-awareness-month-2023-elevating-security-together/ 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 … Read more

Microsoft’s Response to Open-Source Vulnerabilities – CVE-2023-4863 and CVE-2023-5217

Source: https://msrc.microsoft.com/blog/2023/10/microsofts-response-to-open-source-vulnerabilities-cve-2023-4863-and-cve-2023-5217/ 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 … Read more

Microsoft mitigated exposure of internal information in a storage account due to overly-permissive SAS token

Source: https://msrc.microsoft.com/blog/2023/09/microsoft-mitigated-exposure-of-internal-information-in-a-storage-account-due-to-overly-permissive-sas-token/ Summary 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 … Read more

Results of Major Technical Investigations for Storm-0558 Key Acquisition

Source: https://msrc.microsoft.com/blog/2023/09/results-of-major-technical-investigations-for-storm-0558-key-acquisition/ March 12, 2024 update As part of our continued commitment to transparency and trust outlined in Microsoft’s Secure Future Initiative, we are providing further information as it relates to our … Read more

Congratulations to the MSRC 2023 Most Valuable Security Researchers!

Source: https://msrc.microsoft.com/blog/2023/08/congratulations-to-the-msrc-2023-most-valuable-security-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 … Read more

Updating our Vulnerability Severity Classification for AI Systems

Source: https://msrc.microsoft.com/blog/2023/08/Updating-our-Vulnerability-Severity-Classification-for-AI-Systems/ 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. … Read more

Microsoft Bug Bounty Program Year in Review: $13.8M in Rewards

Source: https://msrc.microsoft.com/blog/2023/08/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 … Read more

BlueHat October 2023 Call for Papers is Now Open!

Source: https://msrc.microsoft.com/blog/2023/07/bluehat-october-2023-call-for-papers-is-now-open/ 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 … Read more

Congratulations to the Top MSRC 2023 Q2 Security Researchers!

Source: https://msrc.microsoft.com/blog/2023/07/congratulations-to-the-top-msrc-2023-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 … Read more

Microsoft mitigates China-based threat actor Storm-0558 targeting of customer email

Source: https://msrc.microsoft.com/blog/2023/07/microsoft-mitigates-china-based-threat-actor-storm-0558-targeting-of-customer-email/ UPDATE: 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. Microsoft has mitigated … Read more

Hey Yara, find some vulnerabilities

Source: https://msrc-blog.microsoft.com/blog/2023/06/hey-yara-find-some-vulnerabilities/ Intro 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 … Read more

Announcing The BlueHat Podcast: Listen and Subscribe Now!

Source: https://msrc-blog.microsoft.com/blog/2023/05/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 … Read more

Guidance related to Secure Boot Manager changes associated with CVE-2023-24932

Source: https://msrc-blog.microsoft.com/blog/2023/05/guidance-related-to-secure-boot-manager-changes-associated-with-cve-2023-24932/ Summary 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 … Read more