An Armful of CHERIs

Posted on Thursday January 20, 2022  |  MSRC alerts

Today, Arm announced that the first silicon supporting the Morello prototype architecture, a research project led by Arm, Microsoft, University of Cambridge and others, is now available on a limited run of demonstration boards, which are being shipped from today to industry partners for testing. Morello is the first high-performance implementation of the CHERI extensions…

 

Coming Soon: New Security Update Guide Notification System

Posted on Tuesday January 11, 2022  |  MSRC alerts

Sharing information through the Security Update Guide is an important part of our ongoing effort to help customers manage security risks and keep systems protected. Based on your feedback we have been working to make signing up for and receiving Security Update Guide notifications easier. We are excited to share that starting today, you can…

 

Azure App Service Linux source repository exposure

Posted on Wednesday December 22, 2021  |  MSRC alerts

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 application configured to serve static content, makes it possible…

 

Researcher Spotlight: Dr. Nestori Syynimaa’s Constant Mission Protecting Identities

Posted on Tuesday December 14, 2021  |  MSRC alerts

“When you find the things I find, they really matter. They affect everybody’s security.” Currently streaming: The Expanse and Lost in Space on Netflix Currently listening to: Amorphis, Architects, and Killswitch Engage Currently running: 130 kilometers (or ~80 miles) a month Currently playing: Floorball (a type of floor hockey with five players and a goalkeeper)…

 

Microsoft’s Response to CVE-2021-44228 Apache Log4j 2

Posted on Sunday December 12, 2021  |  MSRC alerts

Published on: 2021 Dec 11 SUMMARY Microsoft is investigating the remote code execution vulnerability (CVE-2021-44228) related to Apache Log4j (a logging tool used in many Java-based applications) disclosed on 9 Dec 2021. As we and the industry at large continue to gain a deeper understanding of the impact of this threat, we will publish technical…

 

Guidance for Azure Active Directory (AD) keyCredential property Information Disclosure in Application and Service Principal APIs

Posted on Wednesday November 17, 2021  |  MSRC alerts

Microsoft recently mitigated an information disclosure issue, CVE-2021-42306, to prevent private key data from being stored by some Azure services in the keyCredentials property of an Azure Active Directory (Azure AD) Application and/or Service Principal, and prevent reading of private key data previously stored in the keyCredentials property.The keyCredentials property is used to configure an…

 

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