Описание
Windows Virtualization-Based Security (VBS) Security Feature Bypass Vulnerability
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
FAQ
What kind of security feature could be bypassed by successfully exploiting this vulnerability?
An attacker who successfully exploited this vulnerability could bypass the Virtualization‑Based Security (VBS) feature, specifically the Virtual Secure Mode (VSM) isolation between Virtual Trust Level 0 (VTL0) and Virtual Trust Level 1 (VTL1). This could allow a compromised Windows kernel to modify memory belonging to the secure kernel, breaking the intended isolation guarantees provided by VBS.
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to take additional actions prior to exploitation to prepare the target environment.
Обновления
| Продукт | Статья | Обновление |
|---|---|---|
| Windows Server 2016 | ||
| Windows 10 Version 1607 for 32-bit Systems | ||
| Windows 10 Version 1607 for x64-based Systems | ||
| Windows Server 2016 (Server Core installation) | ||
| Windows 10 Version 1809 for 32-bit Systems | ||
| Windows 10 Version 1809 for x64-based Systems | ||
| Windows Server 2019 | ||
| Windows Server 2019 (Server Core installation) | ||
| Windows Server 2022 | ||
| Windows Server 2022 (Server Core installation) |
Показывать по
Возможность эксплуатации
Publicly Disclosed
Exploited
Latest Software Release
EPSS
5.7 Medium
CVSS3
Связанные уязвимости
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
Уязвимость доверенной среды выполнения Virtualization-Based Security (VBS) операционных систем Windows, позволяющая нарушителю обойти ограничения безопасности
EPSS
5.7 Medium
CVSS3