CVE-2020-1356: Windows iSCSI Target Service Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

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

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Jul

Released

2020-07-14

EPSS Score

0.28% (percentile: 51.3%)

Description

An elevation of privilege vulnerability exists when the Windows iSCSI Target Service improperly handles file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges. To exploit the vulnerability, an attacker would first need code execution on a victim system. An attacker could then run a specially crafted application. The security update addresses the vulnerability by ensuring the Windows iSCSI Target Service properly handles file operations.

Affected Products (11)

Windows

• Windows Server, version 2004 (Server Core installation)
• Windows Server 2019
• Windows Server 2019 (Server Core installation)
• Windows Server, version 1909 (Server Core installation)
• Windows Server, version 1903 (Server Core installation)
• Windows Server 2016
• Windows Server 2016 (Server Core installation)
• Windows Server 2012
• Windows Server 2012 (Server Core installation)
• Windows Server 2012 R2
• Windows Server 2012 R2 (Server Core installation)

Security Updates (8)

• 4565503
• 4558998
• 4565483
• 4565511
• 4565537
• 4565535
• 4565541
• 4565540

Acknowledgments

Zhiniang Peng (@edwardzpeng) & Xuefeng Li

Revision History

• 2020-07-14: Information published.