CVE-2020-0662: Internet Connection Sharing Service Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 8.6)

CVSS Vector

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

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Feb

Released

2020-02-11

Last Updated

2020-02-12

EPSS Score

35.19% (percentile: 97.0%)

Description

A memory corruption vulnerability exists in the Internet Connection Sharing (ICS) service when an attacker sends specially crafted packets to the server. An attacker who successfully exploited the vulnerability could run arbitrary code on the server with elevated privileges. To exploit the vulnerability, an attacker could send a specially crafted packet to a DHCP server. The security update addresses the vulnerability by correcting how the Internet Connection Sharing (ICS) service handles network packets.

Affected Products (24)

Windows

• Windows 10 Version 1803 for x64-based Systems
• Windows Server, version 1803 (Server Core Installation)
• Windows 10 Version 1809 for x64-based Systems
• Windows Server 2019
• Windows Server 2019 (Server Core installation)
• Windows 10 Version 1709 for x64-based Systems
• Windows 10 Version 1903 for x64-based Systems
• Windows Server, version 1903 (Server Core installation)
• Windows 10 for x64-based Systems
• Windows 10 Version 1607 for x64-based Systems
• Windows Server 2016
• Windows Server 2016 (Server Core installation)
• Windows 8.1 for x64-based systems
• Windows Server 2012
• Windows Server 2012 (Server Core installation)
• Windows Server 2012 R2
• Windows Server 2012 R2 (Server Core installation)
• Windows 10 Version 1909 for x64-based Systems
• Windows Server, version 1909 (Server Core installation)

ESU

• Windows 7 for x64-based Systems Service Pack 1
• Windows Server 2008 for x64-based Systems Service Pack 2
• Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
• Windows Server 2008 R2 for x64-based Systems Service Pack 1
• Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)

Security Updates (14)

• 4537762
• 4532691
• 4537789
• 4532693
• 4537776
• 4537764
• 4537820
• 4537813
• 4537821
• 4537803
• 4537810
• 4537822
• 4537814
• 4537794

Acknowledgments

Quan Luo and Zhiyi Zhang from Codesafe Team of Legendsec at Qi'anxin Group

Revision History

• 2020-02-11: Information published.
• 2020-02-12: Corrected the CVE description and title. This is an informational change only.