Microsoft released security updates for remote code exection vulnerability that exists with Internet explorer, which allows an attacker to execute an arbitary code in the context of the current user.
The vulnerability is tracked as CVE-2018-8653. It was identified by Google’s Threat Analysis Group and the vulnerability is currently being exploited in wild.
Microsoft recently released Security Updates & Fixed 39 Vulnerabilities Including Active Zero-day
The bug can be exploited if the user visited a specially crafted webpage that was designed to exploit the vulnerability through Internet Explorer browser.
An attacker who has successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged in with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
If the attacker takes control over the system, they can utilize it to download additional malware and execute the malware with user access.
The vulnerability could corrupt the memory, which allows an attacker to run the an arbitary code remotely. Now Microsoft fixed the Zero-day by modifying the script engine that handles the object.
To fix the vulnerability, Microsoft released a Cumulative security update for Internet Explorer KB4470199 allowing the users to confirm the update by verifying the version of jscript.dll is 5.8.9600.19230.
This update is applicable to Internet Explorer 11 on Windows 10, Internet Explorer 11 on Windows 8.1 Update, Internet Explorer 11 on Windows 7 SP1, Internet Explorer 10 on Windows Server 2012, Internet Explorer 9 – Windows Embedded Standard 2009 & Windows Embedded POSReady 2009..
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