CVE-2019-0721
published 2019-11-12CVE-2019-0721: A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticated user…
PriorityP356critical9.1CVSS 3.1
AVNACLPRHUINSCCHIHAH
EPSS
11.97%
95.9th percentile
A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0719.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1903_for_x64-based_systems | — | — |
| microsoft | windows_server | — | — |
| microsoft | windows_server | — | — |
| microsoft | windows_server | — | — |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| msrc | windows_10_version_1709_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 | — | — |
| msrc | windows_server_2019 | — | — |
| msrc | windows_server_version_1803 | — | — |
| msrc | windows_server_version_1903 | — | — |
CVSS provenance
nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/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_msrc8.0HIGH
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Microsoft
Hyper-V Remote Code Execution Vulnerability
vendor_msrc·2019-11-12·CVSS 8.0
CVE-2019-0721 [CRITICAL] Hyper-V Remote Code Execution Vulnerability
Hyper-V Remote Code Execution Vulnerability
Description: A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticated user on a guest operating system. To exploit the vulnerability, an attacker could run a specially crafted application on a guest operating system that could cause the Hyper-V host operating system to execute arbitrary code.
An attacker who successfully exploited the vulnerability could execute arbitrary code on the host operating system.
The security update addresses the vulnerability by correcting how Windows Hyper-V Network Switch validates guest operating system network traffic.
Windows Hyper-V: Windows Hyper-V
Impact: Remote Code Execution
Exploit Status: Publicly Disclosed:N
GHSA
GHSA-c9x8-4v35-37qf: A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticat
ghsa_unreviewed·2022-05-24·CVSS 9.1
CVE-2019-0719 [CRITICAL] GHSA-c9x8-4v35-37qf: A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticat
A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0721.
GHSA
GHSA-wgjq-j646-4ghv: A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticat
ghsa_unreviewed·2022-05-24·CVSS 9.1
CVE-2019-0721 [CRITICAL] GHSA-wgjq-j646-4ghv: A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticat
A remote code execution vulnerability exists when Windows Hyper-V Network Switch on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0719.
No detection rules found.
Metasploit
Microsoft Exchange ProxyLogon Collector
metasploit·CVSS 9.8
CVE-2021-26855 [CRITICAL] Microsoft Exchange ProxyLogon Collector
Microsoft Exchange ProxyLogon Collector
This module exploit a vulnerability on Microsoft Exchange Server that allows an attacker bypassing the authentication and impersonating as the admin (CVE-2021-26855). By taking advantage of this vulnerability, it is possible to dump all mailboxes (emails, attachments, contacts, ...). This vulnerability affects (Exchange 2013 Versions < 15.00.1497.012, Exchange 2016 CU18 < 15.01.2106.013, Exchange 2016 CU19 < 15.01.2176.009, Exchange 2019 CU7 < 15.02.0721.013, Exchange 2019 CU8 < 15.02.0792.010). All components are vulnerable by default.
Metasploit
Microsoft Exchange ProxyLogon Scanner
metasploit·CVSS 9.8
CVE-2021-26855 [CRITICAL] Microsoft Exchange ProxyLogon Scanner
Microsoft Exchange ProxyLogon Scanner
This module scan for a vulnerability on Microsoft Exchange Server that allows an attacker bypassing the authentication and impersonating as the admin (CVE-2021-26855). By chaining this bug with another post-auth arbitrary-file-write vulnerability to get code execution (CVE-2021-27065). As a result, an unauthenticated attacker can execute arbitrary commands on Microsoft Exchange Server. This vulnerability affects (Exchange 2013 Versions < 15.00.1497.012, Exchange 2016 CU18 < 15.01.2106.013, Exchange 2016 CU19 < 15.01.2176.009, Exchange 2019 CU7 < 15.02.0721.013, Exchange 2019 CU8 < 15.02.0792.010). All components are vulnerable by default.
Metasploit
Microsoft Exchange ProxyLogon RCE
metasploit·CVSS 9.8
CVE-2021-26855 [CRITICAL] Microsoft Exchange ProxyLogon RCE
Microsoft Exchange ProxyLogon RCE
This module exploit a vulnerability on Microsoft Exchange Server that allows an attacker bypassing the authentication, impersonating as the admin (CVE-2021-26855) and write arbitrary file (CVE-2021-27065) to get the RCE (Remote Code Execution). By taking advantage of this vulnerability, you can execute arbitrary commands on the remote Microsoft Exchange Server. This vulnerability affects (Exchange 2013 Versions < 15.00.1497.012, Exchange 2016 CU18 < 15.01.2106.013, Exchange 2016 CU19 < 15.01.2176.009, Exchange 2019 CU7 < 15.02.0721.013, Exchange 2019 CU8 < 15.02.0792.010). All components are vulnerable by default.
Trendmicro
November Patch Tuesday: 74 Fixes Before Major Update
blogs_trendmicro·2019-11-13·CVSS 9.1
[CRITICAL] November Patch Tuesday: 74 Fixes Before Major Update
Exploits & Vulnerabilities
# November Patch Tuesday: 74 Fixes Before Major Update
November Patch Tuesday holds a total of 74 patches, with 13 classified as Critical for remote code execution (RCE) flaws. The remaining majority were rated as Important and included patches for graphics components and SharePoint, among others.
By: Trend Micro
2019/11/13
Read time: ( words)
Save to Folio
Following the relatively light list from last month, November proved to be a much more eventful month for Microsoft users. The November Patch Tuesday holds more fixes with a total of 74 patches, 13 of which were classified as Critical patches for remote code execution (RCE) vulnerabilities. The remaining majority were rated as Important and included patches for Windows graphics components and Microsoft S
Trendmicro
November Patch Tuesday: 74 Fixes Before Major Update
blogs_trendmicro·2019-11-13·CVSS 9.1
[CRITICAL] November Patch Tuesday: 74 Fixes Before Major Update
# November Patch Tuesday: 74 Fixes Before Major Update
November Patch Tuesday holds a total of 74 patches, with 13 classified as Critical for remote code execution (RCE) flaws. The remaining majority were rated as Important and included patches for graphics components and SharePoint, among others.
By: Trend Micro
Nov 13, 2019
Read time: ( words)
Save to Folio
Following the relatively light list from last month, November proved to be a much more eventful month for Microsoft users. The November Patch Tuesday holds more fixes with a total of 74 patches, 13 of which were classified as Critical patches for remote code execution (RCE) vulnerabilities. The remaining majority were rated as Important and included patches for Windows graphics components and Microsoft SharePoint, among others. T
Qualys
November 2019 Patch Tuesday – 74 vulns, 13 Critical, Actively Attacked IE vuln, Hyper-V escapes, Adobe
blogs_qualys·2019-11-12·CVSS 9.1
[CRITICAL] November 2019 Patch Tuesday – 74 vulns, 13 Critical, Actively Attacked IE vuln, Hyper-V escapes, Adobe
This month’s Microsoft Patch Tuesday addresses 74 vulnerabilities with 13 of them labeled as Critical. Of the 13 Critical vulns, 5 are for browsers and scripting engines. Out of the 8 remaining Critical vulns, 4 are potential hypervisor escapes in Hyper-V, as well as vulnerabilities in Microsoft Exchange, Win32k, Windows Media Foundations, and OpenType. Adobe’s Patch Tuesday was on time this month, and covers 11 vulns spread across Animate, Illustrator, Media Encoder, and Bridge.
UPDATE
There are reports that the CVE-2019-1402 patches are causing issues with all supported versions of Microsoft Access. Microsoft has posted a document on the issue with upcoming fix dates and workarounds.
## Workstation Patches
Scripting Engine, Browser, Win32k, WMF, and OpenType patches should be prioriti
Talos
Microsoft Patch Tuesday — Nov. 2019: Vulnerability disclosures and Snort coverage
blogs_talos·2019-11-12·CVSS 9.1
[CRITICAL] Microsoft Patch Tuesday — Nov. 2019: Vulnerability disclosures and Snort coverage
By Jon Munshaw.
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday discloses 75 vulnerabilities, 13 of which are considered "critical," with the rest being deemed "important."
This month’s security update covers security issues in a variety of Microsoft services and software, including the Scripting Engine, the Windows Hyper-V hypervisor, and Win32. Cisco Talos discovered one of these vulnerabilities, CVE-2019-1448 —a remote code execution vulnerability in Microsoft Excel. For more on this bug, read our full Vulnerability Spotlight here. We are also disclosing a remote code execution vulnerability in Microsoft Media Foundation.
Talos also released a new set of SNORTⓇ rules that provide covera
Talos
Microsoft Patch Tuesday — Nov. 2019: Vulnerability disclosures and Snort coverage
blogs_talos·2019-11-12·CVSS 9.1
[CRITICAL] Microsoft Patch Tuesday — Nov. 2019: Vulnerability disclosures and Snort coverage
## Microsoft Patch Tuesday — Nov. 2019: Vulnerability disclosures and Snort coverage
By Jon Munshaw.
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday discloses 75 vulnerabilities, 13 of which are considered "critical," with the rest being deemed "important."
This month’s security update covers security issues in a variety of Microsoft services and software, including the Scripting Engine, the Windows Hyper-V hypervisor, and Win32. Cisco Talos discovered one of these vulnerabilities, CVE-2019-1448 —a remote code execution vulnerability in Microsoft Excel. For more on this bug, read our full Vulnerability Spotlight here . We are also disclosing a remote code execution vulnerability in Microso
Tenable
Microsoft's November 2019 Patch Tuesday: Tenable Roundup
blogs_tenable·2019-11-12
Microsoft's November 2019 Patch Tuesday: Tenable Roundup
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Qualys
November 2019 Patch Tuesday - 74 vulns, 13 Critical, Actively Attacked IE vuln, Hyper-V escapes, Adobe | Qualys
blogs_qualys·2019-11-12·CVSS 9.1
[CRITICAL] November 2019 Patch Tuesday - 74 vulns, 13 Critical, Actively Attacked IE vuln, Hyper-V escapes, Adobe | Qualys
This month’s Microsoft Patch Tuesday addresses 74 vulnerabilities with 13 of them labeled as Critical. Of the 13 Critical vulns, 5 are for browsers and scripting engines. Out of the 8 remaining Critical vulns, 4 are potential hypervisor escapes in Hyper-V, as well as vulnerabilities in Microsoft Exchange, Win32k, Windows Media Foundations, and OpenType. Adobe’s Patch Tuesday was on time this month, and covers 11 vulns spread across Animate, Illustrator, Media Encoder, and Bridge.
UPDATE
There are reports that the CVE-2019-1402 patches are causing issues with all supported versions of Microsoft Access. Microsoft has posted a document on the issue with upcoming fix dates and workarounds.
### Workstation Patches
Scripting Engine, Browser, Win32k, WMF, and OpenType patches should be priori
2019-11-12
Published