Black Cat Security

We are pleased to announce the addition of Microsoft Teams mobile applications to the Microsoft Applications Bounty Program. Through the expanded program we welcome researchers from across the globe to seek out and disclose any high impact security vulnerabilities they may find in Teams mobile applications to help secure customers. Rewards up to $30,000 USD are available for eligible submissions.

We’re excited to announce the top contributing researchers for the 2021 Second Quarter (Q2)! Congratulations to all the researchers recognized in this quarter’s leaderboard and thank you to everyone who continues to help secure our customers and the

2021 年 7 月 14 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

2021 年 7 月 7 日 (日本時間) に、マイクロソフトは Windows Print Spooler の脆弱性情報 CVE-2021-34527 を公開し、7 月 7 日と 8 日 (日本時間)

Partnering with the security research community is an important part of Microsoft’s holistic approach to defending against security threats. Bug bounty programs are one part of this partnership. By discovering and reporting vulnerabilities to Microsoft through Coordinated Vulnerability Disclosure (CVD), researchers continue to help us secure millions of customers.
Over the past 12 months, Microsoft awarded $13.

On Tuesday July 6, 2021, Microsoft issued CVE-2021-34527 regarding a Windows Print Spooler vulnerability. Updates were released on July 6 and 7 which addressed the vulnerability for all supported Windows versions. We encourage customers to update as soon as possible.
CVE-2021-34527 – Windows Print Spooler Remote Code Execution Vulnerability.
Following the out of band release (OOB) we investigated claims regarding the effectiveness of the security update and questions around the suggested mitigations.

2021 年 7 月 7 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定例外で公

Today Microsoft released an Out-of-Band (OOB) security update for CVE-2021-34527, which is being discussed externally as PrintNightmare. This is a cumulative update release, so it contains all previous security fixes and should be applied immediately to fully protect your systems.
The fix that we released today fully addresses the public vulnerability, and it also includes a new feature that allows customers to implement stronger protections.

The Microsoft Threat Intelligence Center is tracking new activity from the NOBELIUM threat actor. Our investigation into the methods and tactics being used continues, but we have seen password spray and brute-force attacks and want to share some details to help our customers and communities protect themselves.
This recent activity was mostly unsuccessful, and the majority of targets were not successfully compromised – we are aware of three compromised entities to date.

The security landscape continues to rapidly evolve as threat actors find new and innovative methods to gain access to environments across a wide range of vectors. As the industry moves closer to the adoption of a Zero Trust security posture with broad and layered defenses, we remain committed to sharing threat intelligence with the community to shine a light on the latest techniques and exploits of attackers so the industry can better protect itself.