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mscveMicrosoftMS:CVE-2020-0739
HistoryFeb 11, 2020 - 8:00 a.m.

Windows Elevation of Privilege Vulnerability

2020-02-1108:00:00
Microsoft
msrc.microsoft.com
11

4.6 Medium

CVSS2

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

7.8 High

CVSS3

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

0.0004 Low

EPSS

Percentile

9.5%

An elevation of privilege vulnerability exists in the way that the dssvc.dll handles file creation allowing for a file overwrite or creation in a secured location. 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 dssvc.dll properly handles this type of functionality.

4.6 Medium

CVSS2

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

7.8 High

CVSS3

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

0.0004 Low

EPSS

Percentile

9.5%