DHCP: Microsoft Windows DHCP Server Failover Remote Code Execution

This signature detects attempts to exploit a known vulnerability against DHCP Server component of Microsoft Windows. A successful attack can lead to arbitrary code execution with administrative privileges.

Extended Description

A memory corruption vulnerability exists in the Windows Server DHCP service when an attacker sends specially crafted packets to a DHCP failover server. An attacker who successfully exploited the vulnerability could cause the DHCP service to become nonresponsive. To exploit the vulnerability, an attacker could send a specially crafted packet to a DHCP server. However, the DHCP server must be set to failover mode for the attack to succeed. The security update addresses the vulnerability by correcting how DHCP failover servers handle network packets.

Affected Products

Microsoft windows_server_2016

References

CVE: CVE-2019-1206

URL: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0785 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1206

Short Name

DHCP:SERVER:MS-WIN-FAILOVER-RCE

Severity

Critical

Recommended

True

Recommended Action

Drop

DHCP: Microsoft Windows DHCP Server Failover Remote Code Execution

Extended Description

Affected Products

References

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