CVE-2020-0951

EUVD-2020-2419
<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>
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.7 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
microsoftCNA
6.7 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Base Score
CVSS 3.x
EPSS Score
Percentile: 66%
Affected Products (NVD)
VendorProductVersion
microsoftpowershell
7.0 ≤
𝑥
< 7.0.8
microsoftpowershell
7.1 ≤
𝑥
< 7.1.5
microsoftpowershell
7.0.8
microsoftwindows_server_2016
-
microsoftwindows_server_2019
-
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 10
1607 (x64, x86)
1709 (arm64, x64, x86)
1803 (arm64, x64, x86)
1809 (arm64, x64, x86)
1903 (arm64, x64, x86)
1909 (arm64, x64, x86)
2004 (arm64, x64, x86)
Windows Server
1903 Server Core
1909 Server Core
2004 Server Core
Windows Server 2016
Server Core
Standard
Windows Server 2019
Server Core
Standard