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kasperskyKaspersky LabKLA11935
HistoryAug 11, 2020 - 12:00 a.m.

KLA11935 Multiple vulnerabilities in Microsoft Browsers

2020-08-1100:00:00
Kaspersky Lab
threats.kaspersky.com
91

9.3 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

0.549 Medium

EPSS

Percentile

97.7%

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 Microsoft Edge can be exploited remotely via specially crafted website to execute arbitrary code.
  2. A remote code execution vulnerability in Microsoft Edge PDF can be exploited remotely via specially crafted to execute arbitrary code.
  3. A memory corruption vulnerability in Scripting Engine can be exploited remotely via specially crafted website to execute arbitrary code.
  4. A remote code execution vulnerability in MSHTML Engine can be exploited remotely via specially crafted file to execute arbitrary code.

Original advisories

CVE-2020-1569

CVE-2020-1568

CVE-2020-1570

CVE-2020-1567

CVE-2020-1380

CVE-2020-1555

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-2020-1570 critical

CVE-2020-1567 warning

CVE-2020-1569 critical

CVE-2020-1568 critical

CVE-2020-1380 critical

CVE-2020-1555 critical

KB list

4571692

4571694

4571729

4571687

4571709

4566782

4571703

4565349

4571736

4571741

4565351

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

  • Microsoft Edge (EdgeHTML-based)Internet Explorer 9Internet Explorer 11ChakraCore

References

9.3 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

0.549 Medium

EPSS

Percentile

97.7%