Advisory Details

September 15th, 2017

Microsoft Chakra Array Type Confusion Remote Code Execution Vulnerability

CVE ID	CVE-2017-8738
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Chakra
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Chakra. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of arrays in JavaScript. By performing actions in JavaScript, an attacker can trigger a type confusion condition. An attacker can leverage this vulnerability to execute code under the context of the current process.
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-2017-8738
DISCLOSURE TIMELINE	2017-07-27 - Vulnerability reported to vendor 2017-09-15 - Coordinated public release of advisory
CREDIT	Anonymous

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