CVE-2020-17095
published 2020-12-10CVE-2020-17095: Windows Hyper-V Remote Code Execution Vulnerability
PriorityP265critical9.9CVSS 3.1
AVNACLPRLUINSCCHIHAH
EPSS
5.03%
91.4th percentile
Windows Hyper-V Remote Code Execution Vulnerability
Affected
33 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < publication | publication |
| microsoft | windows_10_version_1803 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < publication | publication |
| microsoft | windows_10_version_1903_for_x64-based_systems | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1909 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_2004 | >= 10.0.0 < publication | publication |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < publication | publication |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < publication | publication |
| microsoft | windows_server_version_2004 | >= 10.0.0 < publication | publication |
| microsoft | windows_server_version_20h2 | >= 10.0.0 < publication | publication |
| msrc | windows_10_version_1607_for_x64-based_systems | — | — |
| msrc | windows_10_version_1803_for_x64-based_systems | — | — |
| msrc | windows_10_version_1809_for_x64-based_systems | — | — |
| msrc | windows_10_version_1903_for_x64-based_systems | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Trigger vector is a specially crafted application running inside a Hyper-V guest that sends malformed vSMB packet data to the host; monitor for anomalous vSMB traffic originating from guest VMs toward the Hyper-V host. ↗
- ·Exploitation requires code execution inside a Hyper-V guest VM first; the attack surface is limited to guest-to-host vSMB communication paths. Microsoft assessed exploitation as 'Less Likely' for both latest and older software releases at time of disclosure. ↗
CVSS provenance
nvdv3.19.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
vendor_msrc8.5HIGH
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GHSA
GHSA-g57f-vww4-m67v: , aka 'Hyper-V Remote Code Execution Vulnerability'
ghsa_unreviewed·2022-05-24
CVE-2020-17095 [CRITICAL] GHSA-g57f-vww4-m67v: , aka 'Hyper-V Remote Code Execution Vulnerability'
, aka 'Hyper-V Remote Code Execution Vulnerability'.
Microsoft
Windows Hyper-V Remote Code Execution Vulnerability
vendor_msrc·2020-12-08·CVSS 8.5
CVE-2020-17095 [HIGH] Windows Hyper-V Remote Code Execution Vulnerability
Windows Hyper-V Remote Code Execution Vulnerability
FAQ: How could an attacker exploit this vulnerability?
To exploit this vulnerability, an attacker could run a specially crafted application on a Hyper-V guest that could cause the Hyper-V host operating system to execute arbitrary code when it fails to properly validate vSMB packet data.
Windows Hyper-V: Windows Hyper-V
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Remote Code Execution
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4592438
Reference: https://support.microsoft.com/help/4592438
Reference: https://catalog.update.microsoft.com/v7/sit
No detection rules found.
No public exploits indexed.
Qualys
December 2020 Patch Tuesday – 58 Vulnerabilities, 9 Critical, Windows Exchange, Hyper-V, SharePoint, Adobe
blogs_qualys·2020-12-08·CVSS 8.5
[HIGH] December 2020 Patch Tuesday – 58 Vulnerabilities, 9 Critical, Windows Exchange, Hyper-V, SharePoint, Adobe
This month’s Microsoft Patch Tuesday addresses 58 vulnerabilities with 9 of them labeled as Critical. The 9 Critical vulnerabilities cover Exchange, SharePoint, Hyper-V, Chakra Scripting, and several other workstation vulnerabilities. Adobe released patches today for Experience Manager, Prelude, Lightroom and pre-notification security advisory for Acrobat and Reader .
## Workstation Patches
Today’s Patch Tuesday fixes vulnerabilities that would impact workstations. The Office, Edge, Chakra vulnerabilities should be prioritized for workstation-type devices, meaning any system that is used for email or to access the internet via a browser. This includes multi-user servers that are used as remote desktops for users.
## Microsoft Exchange RCE
Microsoft patched five Remote Code Execution vu
Qualys
December 2020 Patch Tuesday – 58 Vulnerabilities, 9 Critical, Windows Exchange, Hyper-V, SharePoint, Adobe | Qualys
blogs_qualys·2020-12-08·CVSS 8.5
[HIGH] December 2020 Patch Tuesday – 58 Vulnerabilities, 9 Critical, Windows Exchange, Hyper-V, SharePoint, Adobe | Qualys
This month’s Microsoft Patch Tuesday addresses 58 vulnerabilities with 9 of them labeled as Critical. The 9 Critical vulnerabilities cover Exchange, SharePoint, Hyper-V, Chakra Scripting, and several other workstation vulnerabilities. Adobe released patches today for Experience Manager, Prelude, Lightroom and pre-notification security advisory for Acrobat and Reader.
### Workstation Patches
Today’s Patch Tuesday fixes vulnerabilities that would impact workstations. The Office, Edge, Chakra vulnerabilities should be prioritized for workstation-type devices, meaning any system that is used for email or to access the internet via a browser. This includes multi-user servers that are used as remote desktops for users.
### Microsoft Exchange RCE
Microsoft patched five Remote Code Execution v
2020-12-10
Published