KLA11331 Multiple vulnerabilities in Microsoft Browsers

Multiple vulnerabilities were found in Microsoft Browsers. Malicious users can exploit these vulnerabilities to execute arbitrary code, bypass security restrictions.

Below is a complete list of vulnerabilities:

1. A memory corruption vulnerability in Chakra Scripting Engine can be exploited remotely via specially crafted website to execute arbitrary code.
2. A memory corruption vulnerability in Microsoft Edge can be exploited remotely via specially crafted website to execute arbitrary code.
3. A security feature bypass vulnerability in Microsoft Edge can be exploited remotely via specially crafted website to bypass security restrictions.
4. A memory corruption vulnerability in Internet Explorer can be exploited remotely via specially crafted website to execute arbitrary code.
5. A memory corruption vulnerability in Scripting Engine can be exploited remotely to execute arbitrary code.

Original advisories

CVE-2018-8510

CVE-2018-8503

CVE-2018-8473

CVE-2018-8511

CVE-2018-8505

CVE-2018-8513

CVE-2018-8512

CVE-2018-8491

CVE-2018-8460

CVE-2018-8530

CVE-2018-8509

CVE-2018-8500

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-Internet-Explorer

Microsoft-Edge

ChakraCore

CVE list

CVE-2018-8500 critical

CVE-2018-8510 critical

CVE-2018-8503 critical

CVE-2018-8473 critical

CVE-2018-8511 critical

CVE-2018-8505 critical

CVE-2018-8513 critical

CVE-2018-8512 high

CVE-2018-8491 critical

CVE-2018-8460 critical

CVE-2018-8530 warning

CVE-2018-8509 critical

KB list

4462917

4462918

4462923

4462919

4464330

4462937

4462922

4462926

4462949

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

Affected Products

• ChakraCoreInternet Explorer 11Microsoft Edge (EdgeHTML-based)