KLA11749 Multiple vulnerabilities in Microsoft Browsers

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

Below is a complete list of vulnerabilities:

1. A memory corruption vulnerability in Scripting Engine can be exploited remotely via specially crafted website to execute arbitrary code.
2. A memory corruption vulnerability in Chakra Scripting Engine can be exploited remotely via specially crafted website to execute arbitrary code.
3. A remote code execution vulnerability in VBScript can be exploited remotely via specially crafted website to execute arbitrary code.
4. A memory corruption vulnerability in Scripting Engine can be exploited remotely to execute arbitrary code.
5. A remote code execution vulnerability in Windows VBScript Engine can be exploited remotely via specially crafted website to execute arbitrary code.

Original advisories

CVE-2020-0968

CVE-2020-0969

CVE-2020-0966

CVE-2020-0970

CVE-2020-0967

CVE-2020-0895

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-2020-0968 critical

CVE-2020-0967 critical

CVE-2020-0895 critical

CVE-2020-0966 critical

CVE-2020-0969 critical

CVE-2020-0970 critical

KB list

4549949

4550927

4550929

4550964

4550917

4549951

4550961

4550922

4550930

4550905

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.

Affected Products

• ChakraCoreMicrosoft Edge (EdgeHTML-based)Internet Explorer 9Internet Explorer 11