Advisory Details

March 12th, 2019

Microsoft Windows DHCP Client Integer Underflow Remote Code Execution Vulnerability

CVE ID	CVE-2019-0726
CVSS SCORE	5.0, AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Windows
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. Authentication is not required to exploit this vulnerability. The specific flaw exists within the DHCP Client service. A crafted DHCP packet can trigger an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the Local Service account.
ADDITIONAL DETAILS	Microsoft has issued an update to correct this vulnerability. More details can be found at: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0726
DISCLOSURE TIMELINE	2019-01-11 - Vulnerability reported to vendor 2019-03-12 - Coordinated public release of advisory 2019-04-01 - Advisory Updated
CREDIT	Saran Neti of Trend Micro Security Research

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