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mscveMicrosoftMS:CVE-2020-1085
HistoryJul 14, 2020 - 7:00 a.m.

Windows Function Discovery Service Elevation of Privilege Vulnerability

2020-07-1407:00:00
Microsoft
msrc.microsoft.com
26

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

9.5%

An elevation of privilege vulnerability exists in the way that the Windows Function Discovery Service handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions.

To exploit the vulnerability, a locally authenticated attacker could run a specially crafted application.

The security update addresses the vulnerability by ensuring the Windows Function Discovery Service properly handles objects in memory.

Affected configurations

Vulners
Node
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_server_2012Range<2020-Julr2
OR
microsoftwindows_server_2012Range<2020-Julr2
OR
microsoftwindows_server_2012Range<2020-Julr2
OR
microsoftwindows_server_2012Range<2020-Julr2
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-Jul
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-Jul
OR
microsoftwindows_server_2012Range<2020-Jul
OR
microsoftwindows_server_2012Range<2020-Jul
OR
microsoftwindows_server_2008Range<2020-Julr2x64
OR
microsoftwindows_server_2008Range<2020-Julr2x64
OR
microsoftwindows_server_2008Range<2020-Julr2x64
OR
microsoftwindows_server_2008Range<2020-Julr2x64
OR
microsoftwindows_server_2008Range<2020-Julx64
OR
microsoftwindows_server_2008Range<2020-Julx64
OR
microsoftwindows_server_2008Range<2020-Julx64
OR
microsoftwindows_server_2008Range<2020-Julx64
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-Jul
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-Jul
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_rt_8.1Range<2020-Jul
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-Jul
OR
microsoftwindows_server_2016Range<2020-Jul
OR
microsoftwindows_defender_on_windows_10_1607_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_defender_on_windows_10_1607_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_2004_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_server\,_version_1903Range<2020-Jul
OR
microsoftwindows_10_1903_for_arm64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1903_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1903_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_10_1709_for_arm64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1709_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1709_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_server\,_version_1909Range<2020-Jul
OR
microsoftwindows_10_1909_for_arm64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1909_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1909_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_server\,_1803_\(server_core_installation\)Range<2020-Jul
OR
microsoftwindows_server_2019Range<2020-Jul
OR
microsoftwindows_10_1809_for_arm64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1809_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1809_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_10_1803_for_arm64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1803_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_1803_for_32-bit_systemsRange<2020-Jul
OR
microsoftwindows_server_version_2004Range<2020-Jul
OR
microsoftwindows_10_2004_for_x64-based_systemsRange<2020-Jul
OR
microsoftwindows_10_2004_for_arm64-based_systemsRange<2020-Jul

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

9.5%