msrc

Best practices regarding Azure Storage Keys, Azure Functions, and Azure Role Based Access

Tuesday, April 11, 2023

Summary Azure provides developers and security operations staff a wide array of configurable security options to meet organizational needs. Throughout the software development lifecycle, it is important for customers to understand the shared responsibility model, as well as be familiar with various security best practices. This is particularly important in deploying Azure Functions and in provisioning Azure Role Based Access Control as customers are responsible for configuring and managing applications, identity, and data.

• Azure

Guidance on Potential Misconfiguration of Authorization of Multi-Tenant Applications that use Azure AD

Wednesday, March 29, 2023

Summary Microsoft has addressed an authorization misconfiguration for multi-tenant applications that use Azure AD, initially discovered by Wiz, and reported to Microsoft, that impacted a small number of our internal applications. The misconfiguration allowed external parties read and write access to the impacted applications. Microsoft immediately corrected the misconfiguration and added additional authorization checks to address the issue and confirmed that no unintended access had occurred.

• MSRC

Microsoft Mitigates Outlook Elevation of Privilege Vulnerability

Tuesday, March 14, 2023

May 9, 2023 update: Releases for Microsoft Products has been updated with the release of CVE-2023-29324 - Security Update Guide - Microsoft - Windows MSHTML Platform Security Feature Bypass Vulnerability March 24, 2023 update: Impact Assessment has been updated to a link to Guidance for investigating attacks using CVE-2023-23397 - Microsoft Security Blog.

• Outlook

New MSRC Blog Site

Wednesday, February 08, 2023

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 site performance, search, categories, and tags to help users easily find content.

• MSRC

BlueHat 2023: Connecting the security research community with Microsoft

Monday, February 06, 2023

We’re excited to welcome more than 400 members of the security research community from around the world to Redmond, Washington for BlueHat 2023. Hosted by the Microsoft Security Response Center (MSRC), BlueHat is where the security research community, and Microsoft security professionals, come together as peers to connect, share, learn, and exchange ideas in the interest of creating a safer and more secure world for all.

• BlueHat

Microsoft Investigation - Threat actor consent phishing campaign abusing the verified publisher process

Tuesday, January 31, 2023

Summary On December 15th, 2022, Microsoft became aware of a consent phishing campaign involving threat actors fraudulently impersonating legitimate companies when enrolling in the Microsoft Cloud Partner Program (MCPP) (formerly known as Microsoft Partner Network (MPN)). The actor used fraudulent partner accounts to add a verified publisher to OAuth app registrations they created in Azure AD.

Congratulations to the Top MSRC 2022 Q4 Security Researchers!

Thursday, January 26, 2023

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: goodbyeselene, Jarvis_1oop, and kap0k! Check out the full list of researchers recognized this quarter here.

• Community-based Defense
• Coordinated Vulnerability Disclosure
• Researcher Recognition
• Security Researcher

Microsoft resolves four SSRF vulnerabilities in Azure cloud services

Tuesday, January 17, 2023

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 they do not allow access to sensitive information or Azure backend services.

Awareness and guidance related to OpenSSL 3.0 - 3.0.6 risk (CVE-2022-3786 and CVE-2202-3602)

Wednesday, November 02, 2022

Summary Microsoft is aware and actively addressing the impact associated with the recent OpenSSL vulnerabilities announced on October 25th 2022, fixed in version 3.0.7. As part of our standard processes, we are rolling out fixes for impacted services. Any customer action that is required will be highlighted in this blog and our associated Security Update Guides (CVE-2022-3786 Security Update Guide and CVE-2022-3602 Security Update Guide).

Microsoft Mitigates Vulnerability in Jupyter Notebooks for Azure Cosmos DB

Tuesday, November 01, 2022

Summary Microsoft recently fixed an authentication bypass vulnerability in Jupyter Notebooks for Azure Cosmos DB (currently in preview) reported by Orca Security. Customers not using Jupyter Notebooks (99.8% of Azure Cosmos DB customers do NOT use Jupyter notebooks) were not susceptible to this vulnerability. The bug was introduced on August 12th and fully patched worldwide on Oct 6th, two days after it was reported.