<p>A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC enforcement. An attacker who successfully exploited this vulnerability could execute PowerShell commands that would be blocked by WDAC.</p> <p>To exploit the vulnerability, an attacker need administrator access on a local machine where PowerShell is running. The attacker could then connect to a PowerShell session and send commands to execute arbitrary code.</p> <p>The update addresses the vulnerability by correcting how PowerShell commands are validated when WDAC protection is enabled.</p>
CVSS Details
- CVSS 3.1 Base Score: 6.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2020-09 Cumulative Update for Microsoft Windows 10, version 1709 (KB4577041)2020-09 Cumulative Update for Microsoft Windows 10, version 1803 (KB4577032)2020-09 Cumulative Update for Windows Server, version 1909 for x64-based Systems (KB4574727)2020-09 Cumulative Update for Windows Server, version 2004 for x64-based Systems (KB4571756)2020-09 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB4570333)2020-09 Cumulative Update for Microsoft Windows 10, version 1903 (KB4574727)2020-09 Cumulative Update for Windows Server, version 1903 for x64-based Systems (KB4574727)2020-09 Cumulative Update for Microsoft Windows 10, version 1909 (KB4574727)2020-09 Cumulative Update for Microsoft Windows 10, version 1607 (KB4577015)2020-09 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB4577015)2020-09 Cumulative Update for Microsoft Windows 10, version 1809 (KB4570333)2020-09 Cumulative Update for Microsoft Windows 10, version 2004 (KB4571756) | Sep 8, 2020 | Sep 8, 2020 |
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