CVE-2020-1243

<p>A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.</p> <p>To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application.</p> <p>The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests.</p>

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10:1607::::::x64:
	cpe:2.3:o:microsoft:windows_10:1709::::::x64:
	cpe:2.3:o:microsoft:windows_10:1803::::::x64:
	cpe:2.3:o:microsoft:windows_10:1809::::::x64:
	cpe:2.3:o:microsoft:windows_10:1903::::::x64:
	cpe:2.3:o:microsoft:windows_10:2004::::::x64:
	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1903:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:1909:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:2004:::::::*
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

History

No history.

Information

Published : 2020-10-16 23:15

Updated : 2023-12-31 20:16

NVD link : CVE-2020-1243

Mitre link : CVE-2020-1243

CVE.ORG link : CVE-2020-1243

JSON object : View

Products Affected

microsoft

windows_server_2016
windows_10
windows_server_2019

CWE

NVD-CWE-noinfo

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Para explotar la vulnerabilidad, un atacante que ya presenta una cuenta privilegiada en un sistema operativo invitado, ejecut\u00e1ndose como una m\u00e1quina virtual, podr\u00eda correr una aplicaci\u00f3n especialmente dise\u00f1ada. La actualizaci\u00f3n de seguridad aborda la vulnerabilidad al resolver las condiciones en las que Hyper-V no podr\u00eda manejar estas peticiones, tambi\u00e9n se conoce como \"Windows Hyper-V Denial of Service Vulnerability\""}], "lastModified": "2023-12-31T20:16:02.387", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "897A48D7-FCA1-4560-AFBB-718AF19BA3A2"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "1B3308A0-1699-4A4A-8D6B-AB4E4C825C95"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "1981BA0D-0920-40C0-8A6A-5D5A1B221560"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "6CF580BA-6938-40F6-9D86-F43044A6BACA"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "2487AF09-F003-482A-BD42-31F6AEAA033F"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "09D9A720-8D3C-4699-AC57-CB4531E5BFEB"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B921FDB-8E7D-427E-82BE-4432585080CF"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C253A63F-03AB-41CB-A03A-B2674DEA98AA"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0B60D940-80C7-49F0-8F4E-3F99AC15FA82"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}