CVE-2020-16898 : Security Advisory and Response
Learn about CVE-2020-16898, a critical remote code execution vulnerability in Windows TCP/IP stack allowing attackers to execute code on target systems. Find out affected systems, exploitation details, and mitigation steps.
A remote code execution vulnerability in the Windows TCP/IP stack that allows attackers to execute code on target systems.
Understanding CVE-2020-16898
What is CVE-2020-16898?
A critical vulnerability in Windows TCP/IP stack handling ICMPv6 Router Advertisement packets.
The Impact of CVE-2020-16898
- Attackers can execute code on Windows servers or clients by exploiting this flaw.
- Requires sending specially crafted ICMPv6 Router Advertisement packets remotely.
Technical Details of CVE-2020-16898
Vulnerability Description
The vulnerability arises from improper handling of ICMPv6 Router Advertisement packets in the Windows TCP/IP stack.
Affected Systems and Versions
- Windows 10 Version 1803, 1809, 1909, 2004
- Windows Server 2019, 1903, 2004
Exploitation Mechanism
- Attackers exploit by sending malicious ICMPv6 Router Advertisement packets to Windows systems.
Mitigation and Prevention
Immediate Steps to Take
- Apply the security update provided by Microsoft to address the vulnerability.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update systems with the latest security patches.
- Implement network segmentation to limit the impact of potential attacks.
- Conduct security training for users to recognize and report suspicious activities.
Patching and Updates
Microsoft has released an update to correct the handling of ICMPv6 Router Advertisement packets in the Windows TCP/IP stack.