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mscveMicrosoftMS:CVE-2020-1071
HistoryMay 12, 2020 - 7:00 a.m.

Windows Remote Access Common Dialog Elevation of Privilege Vulnerability

2020-05-1207:00:00
Microsoft
msrc.microsoft.com
13

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

6.8

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

27.9%

An elevation of privilege vulnerability exists when Windows improperly handles errors tied to Remote Access Common Dialog. An attacker who successfully exploited the vulnerability could run arbitrary code with elevated privileges.

To exploit this vulnerability an attacker would need to physically access the booted machine to reach the logon screen. An attacker could then exploit the vulnerability and take control of an affected system.

The update addresses the vulnerability by correcting how the Windows handles errors tied to Remote Access Common Dialog.

Affected configurations

Vulners
Node
microsoftwindows_rt_8.1Range<2020-May
OR
microsoftwindows_server_2008Range<2020-Mayr2x64
OR
microsoftwindows_server_2008Range<2020-Mayr2x64
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_server_2008Range<2020-Mayr2x64
OR
microsoftwindows_server_2008Range<2020-Mayr2x64
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-May
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-May
OR
microsoftwindows_server_2012Range<2020-May
OR
microsoftwindows_server_2012Range<2020-May
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-May
OR
microsoftwindows_server_2016Range<2020-May
OR
microsoftwindows_defender_on_windows_10_1607_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_1903_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_server_2012Range<2020-Mayr2
OR
microsoftwindows_server_2012Range<2020-Mayr2
OR
microsoftwindows_server_2012Range<2020-Mayr2
OR
microsoftwindows_server_2012Range<2020-Mayr2
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_defender_on_windows_10_1607_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_server\,_version_1903Range<2020-May
OR
microsoftwindows_10_1903_for_arm64-based_systemsRange<2020-May
OR
microsoftwindows_10_1709_for_arm64-based_systemsRange<2020-May
OR
microsoftwindows_10_1709_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_1709_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_server\,_version_1909Range<2020-May
OR
microsoftwindows_10_1909_for_arm64-based_systemsRange<2020-May
OR
microsoftwindows_10_1909_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_1909_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-May
OR
microsoftwindows_server_2019Range<2020-May
OR
microsoftwindows_10_1809_for_arm64-based_systemsRange<2020-May
OR
microsoftwindows_10_1809_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_1809_for_32-bit_systemsRange<2020-May
OR
microsoftwindows_10_1803_for_arm64-based_systemsRange<2020-May
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-May
OR
microsoftwindows_10_1803_for_x64-based_systemsRange<2020-May
OR
microsoftwindows_10_1803_for_32-bit_systemsRange<2020-May

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

6.8

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

27.9%