CVE-2020-1146: Microsoft Store Runtime Elevation of Privilege Vulnerability

Overview

Severity

Medium (CVSS 6.6)

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L/E:P/RL:O/RC:C

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Sep

Released

2020-09-08

EPSS Score

0.48% (percentile: 65.1%)

Description

An elevation of privilege vulnerability exists when the Microsoft Store Runtime improperly handles memory. To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges. The security update addresses the vulnerability by correcting how the Microsoft Store Runtime handles memory.

Affected Products (27)

Other

• 11497
• 11498
• 11563
• 11568
• 11569
• 11570
• 11571
• 11572
• 11712
• 11713
• 11714
• 11715
• 11453
• 11454
• 11583
• 11644
• 11645
• 11646
• 11647
• 11766
• 11767
• 11768
• 11769
• 10852
• 10853
• 10816
• 10855

Security Updates (6)

• 4577032
• 4570333
• 4574727
• 4577041
• 4571756
• 4577015

Acknowledgments

Zhiniang Peng (@edwardzpeng) and Fangming Gu (@afang5472)

Revision History

• 2020-09-08: Information published.