Описание
Microsoft PowerShell Security Feature Bypass Vulnerability
Execution with unnecessary privileges in Windows PowerShell 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 Windows Defender Application Control and PowerShell Constrained Language Mode restrictions, allowing untrusted code to run with capabilities those protections are designed to block.
How could an attacker exploit this vulnerability?
An authorized attacker who can execute Windows PowerShell locally under Constrained Language Mode could define and invoke a crafted workflow. Attacker-controlled workflow-definition data is inserted into a generated wrapper that runs in Full Language Mode, allowing the attacker to bypass Windows Defender Application Control and PowerShell Constrained Language Mode restrictions.
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) |
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Возможность эксплуатации
Publicly Disclosed
Exploited
Latest Software Release
8.8 High
CVSS3
Связанные уязвимости
Execution with unnecessary privileges in Windows PowerShell allows an authorized attacker to bypass a security feature locally.
Execution with unnecessary privileges in Windows PowerShell allows an authorized attacker to bypass a security feature locally.
8.8 High
CVSS3