Vulnerability Description
<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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Powershell | >= 7.0, < 7.0.8 |
| Microsoft | Windows 10 | 1607 |
| Microsoft | Windows Server 2016 | - |
| Microsoft | Windows Server 2019 | - |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0951PatchVendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0951PatchVendor Advisory
FAQ
What is CVE-2020-0951?
CVE-2020-0951 is a vulnerability with a CVSS score of 6.7 (MEDIUM). <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 v...
How severe is CVE-2020-0951?
CVE-2020-0951 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-0951?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Powershell, Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.