Advisory Details

March 19th, 2018

Microsoft Windows BasicRender Untrusted Pointer Dereference Privilege Escalation Vulnerability

CVE ID	CVE-2018-0977
CVSS SCORE	7.2, AV:L/AC:L/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Windows
VULNERABILITY DETAILS	This vulnerability allows local attackers to escalate privileges on vulnerable installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the BasicRender driver. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to escalate privilege to the level of SYSTEM.
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-2018-0977
DISCLOSURE TIMELINE	2018-01-09 - Vulnerability reported to vendor 2018-03-19 - Coordinated public release of advisory 2018-03-19 - Advisory Updated
CREDIT	Anonymous

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