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symantecSymantec Security ResponseSMNTC-99422
HistoryJul 11, 2017 - 12:00 a.m.

Microsoft Edge CVE-2017-8617 Remote Code Execution Vulnerability

2017-07-1100:00:00
Symantec Security Response
www.symantec.com
21

EPSS

0.052

Percentile

93.1%

Description

Microsoft Edge is prone to a remote code-execution vulnerability. Attackers can exploit this issue by enticing an unsuspecting user to view a specially crafted web page. Attackers can exploit this issue to execute arbitrary code in the context of the currently logged-in user. Failed attacks will cause denial of service conditions. This could allow the attackers to obtain information to further compromise the user’s system.

Technologies Affected

  • Microsoft Edge

Recommendations

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits

Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.

Implement multiple redundant layers of security.
Various memory-protection schemes (such as nonexecutable and randomly mapped memory segments) may hinder an attacker’s ability to exploit this vulnerability to execute arbitrary code.

Updates are available. Please see the references or vendor advisory for more information.