New Windows 11 security features are designed for hybrid work

Attackers are constantly evolving, becoming increasingly sophisticated and destructive—the median time for an attacker to access your private data if you fall victim to a phishing email is 1 hour, 12 minutes.1 Microsoft tracks more than 35 ransomware families and more than 250 unique nation-state...

Exploit for Exposed IOCTL with Insufficient Access Control in Dell Dbutil

CVE-2021-21551 A PoC that exploits Dell's dbutil23 driver...

New Surface PCs enable virtualization-based security (VBS) by default to empower customers to do more, securely

VBS and HVCI-enabled devices help protect from advanced attacks Escalation of privilege attacks are a malicious actor’s best friend, and they often target sensitive information stored in memory. These kinds of attacks can turn a minor user mode compromise into a full compromise of your OS and...

New Surface PCs enable virtualization-based security (VBS) by default to empower customers to do more, securely

VBS and HVCI-enabled devices help protect from advanced attacks Escalation of privilege attacks are a malicious actor’s best friend, and they often target sensitive information stored in memory. These kinds of attacks can turn a minor user mode compromise into a full compromise of your OS and...

System Management Mode deep dive: How SMM isolation hardens the platform

Ensuring that the platform firmware is healthy and trustworthy is fundamental to guaranteeing that powerful platform security features like Hypervisor-protected code integrity HVCI and Windows Defender Credential Guard are functioning as expected. Windows 10 achieves this by leveraging a...

Security feature bypass

Microsoft Windows 10 Gold and 1511 allows local users to bypass the Virtual Secure Mode Hypervisor Code Integrity HVCI protection mechanism and perform RWX markings of kernel-mode pages via a crafted application, aka "Hypervisor Code Integrity Security Feature Bypass."...

CVE-2016-0181

CVE-2016-0181 describes a local security feature bypass in Windows 10 Gold and 1511 where a crafted application could bypass Virtual Secure Mode Hypervisor Code Integrity (HVCI) and mark kernel-mode pages as RWX. Several connected sources (CNVD-2016-03091, NVD/NVD mirror, MSRC/MS16-066, and OpenV...

CVE-2016-0181

Microsoft Windows 10 Gold and 1511 allows local users to bypass the Virtual Secure Mode Hypervisor Code Integrity HVCI protection mechanism and perform RWX markings of kernel-mode pages via a crafted application, aka "Hypervisor Code Integrity Security Feature Bypass."...

Hypervisor Code Integrity Security Feature Bypass

A security feature bypass vulnerability exists when Windows incorrectly allows certain kernel-mode pages to be marked as Read, Write, Execute RWX even with Hypervisor Code Integrity HVCI enabled. To exploit this vulnerability, an attacker could run a specially crafted application to bypass code...