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mscveMicrosoftMS:CVE-2020-0899
HistoryApr 14, 2020 - 7:00 a.m.

Microsoft Visual Studio Elevation of Privilege Vulnerability

2020-04-1407:00:00
Microsoft
msrc.microsoft.com
20

CVSS2

3.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0

Percentile

9.5%

An elevation of privilege vulnerability exists when Microsoft Visual Studio updater service improperly handles file permissions. An attacker who successfully exploited this vulnerability could overwrite arbitrary file content in the security context of the local system.

To exploit this vulnerability, an attacker would first have to log on to the system, and can control the files written by the updater.

The update addresses the vulnerability by correcting how the Visual Studio updater handles permissions.

CVSS2

3.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0

Percentile

9.5%