Advisory Details

June 8th, 2018

(Pwn2Own) Microsoft Edge WebRTC Parameters Use-After-Free Remote Code Execution Vulnerability

CVE ID	CVE-2018-8179
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Edge
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Edge. 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 processing of parameters to WebRTC APIs. By performing actions in JavaScript an attacker can cause a pointer to be reused after it has been freed. 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-2018-8179
DISCLOSURE TIMELINE	2018-03-18 - Vulnerability reported to vendor 2018-06-08 - Coordinated public release of advisory 2018-06-08 - Advisory Updated
CREDIT	Richard Zhu (fluorescence)

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