Kaspersky Threats

Detect date

?

06/13/2017

Severity

?

Critical

Description

Multiple serious vulnerabilities have been found in Microsoft Internet Explorer and Microsoft Edge. Malicious users can exploit these vulnerabilities to execute arbitrary code and obtain sensitive information.

Below is a complete list of vulnerabilities:

Multiple vulnerabilities related to an improper handling of objects in memory can be exploited remotely by convincing a user to visit a specially designed website to execute arbitrary code;
Incorrect restrictions put on the way the information is returned to Microsoft Edge by JavaScript object methods can be exploited remotely by convincing a user to visit a specially designed website to obtain sensitive information;
Multiple vulnerabilities related to an improper handling of objects in memory done by JavaScript scripting engines can be exploited remotely by convincing a user to visit a specially designed website, by embedding an ActiveX control marked “safe for initialization” in an application or via a Microsoft Office document which hosts the Edge rendering engine to execute arbitrary code;
An incorrect handling of specific filtered response types done by the Fetch API in Microsoft Edge can be exploited remotely by convincing a user to visit a specially designed website to obtain sensitive information;
An improper handling of objects in memory in Microsoft Internet Explorer can be exploited remotely by convincing a user to visit a specially designed website to execute arbitrary code;
An incorrect check for scripts which attempt to matipulate HTML elements in other browser windows can be exploited remotely by convincing a user to visit a specially designed website or load a specially designed page to bypass security restrictions;
An improper handling of objects in memory can be exploited remotely by convincing a user to visit a specially designed website to obtain sensitive information;
An improper enforcement of same-origin policies in Microsoft Edge can be exploited remotely by convincing a user to visit a specially designed website or load a specially designed page to bypass security restrictions;
An incorrect validation of documents done by the CSP (Content Security Policy) in Microsoft Edge can be exploited remotely by convincing a user to visit a specially designed website or load a specially designed page to bypass security restrictions.

Affected products

Microsoft Edge
Microsoft Internet Explorer versions 9 through 11

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)

Original advisories

CVE-2017-8520
CVE-2017-8498
CVE-2017-8499
CVE-2017-8496
CVE-2017-8497
CVE-2017-8523
CVE-2017-8530
CVE-2017-8524
CVE-2017-8522
CVE-2017-8549
CVE-2017-8517
CVE-2017-8521
CVE-2017-8504
CVE-2017-8548
CVE-2017-8519
CVE-2017-8547
CVE-2017-8555
CVE-2017-8529
CVE-2017-8496
CVE-2017-8497
CVE-2017-8498
CVE-2017-8499
CVE-2017-8504
CVE-2017-8517
CVE-2017-8519
CVE-2017-8520
CVE-2017-8521
CVE-2017-8522
CVE-2017-8523
CVE-2017-8524
CVE-2017-8529
CVE-2017-8547
CVE-2017-8548
CVE-2017-8549
CVE-2017-8555

Impacts

?

ACE

[?]

Detect date ?	06/13/2017
Severity ?	Critical
Description	Multiple serious vulnerabilities have been found in Microsoft Internet Explorer and Microsoft Edge. Malicious users can exploit these vulnerabilities to execute arbitrary code and obtain sensitive information. Below is a complete list of vulnerabilities: Multiple vulnerabilities related to an improper handling of objects in memory can be exploited remotely by convincing a user to visit a specially designed website to execute arbitrary code; Incorrect restrictions put on the way the information is returned to Microsoft Edge by JavaScript object methods can be exploited remotely by convincing a user to visit a specially designed website to obtain sensitive information; Multiple vulnerabilities related to an improper handling of objects in memory done by JavaScript scripting engines can be exploited remotely by convincing a user to visit a specially designed website, by embedding an ActiveX control marked “safe for initialization” in an application or via a Microsoft Office document which hosts the Edge rendering engine to execute arbitrary code; An incorrect handling of specific filtered response types done by the Fetch API in Microsoft Edge can be exploited remotely by convincing a user to visit a specially designed website to obtain sensitive information; An improper handling of objects in memory in Microsoft Internet Explorer can be exploited remotely by convincing a user to visit a specially designed website to execute arbitrary code; An incorrect check for scripts which attempt to matipulate HTML elements in other browser windows can be exploited remotely by convincing a user to visit a specially designed website or load a specially designed page to bypass security restrictions; An improper handling of objects in memory can be exploited remotely by convincing a user to visit a specially designed website to obtain sensitive information; An improper enforcement of same-origin policies in Microsoft Edge can be exploited remotely by convincing a user to visit a specially designed website or load a specially designed page to bypass security restrictions; An incorrect validation of documents done by the CSP (Content Security Policy) in Microsoft Edge can be exploited remotely by convincing a user to visit a specially designed website or load a specially designed page to bypass security restrictions.
Affected products	Microsoft Edge Microsoft Internet Explorer versions 9 through 11
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)
Original advisories	CVE-2017-8520 CVE-2017-8498 CVE-2017-8499 CVE-2017-8496 CVE-2017-8497 CVE-2017-8523 CVE-2017-8530 CVE-2017-8524 CVE-2017-8522 CVE-2017-8549 CVE-2017-8517 CVE-2017-8521 CVE-2017-8504 CVE-2017-8548 CVE-2017-8519 CVE-2017-8547 CVE-2017-8555 CVE-2017-8529 CVE-2017-8496 CVE-2017-8497 CVE-2017-8498 CVE-2017-8499 CVE-2017-8504 CVE-2017-8517 CVE-2017-8519 CVE-2017-8520 CVE-2017-8521 CVE-2017-8522 CVE-2017-8523 CVE-2017-8524 CVE-2017-8529 CVE-2017-8547 CVE-2017-8548 CVE-2017-8549 CVE-2017-8555
Impacts ?	ACE [?]
Related products	Microsoft Internet Explorer Microsoft Edge
CVE-IDS ?	CVE-2017-84967.6Critical CVE-2017-84977.6Critical CVE-2017-84984.3Warning CVE-2017-84997.6Critical CVE-2017-85044.3Warning CVE-2017-85177.6Critical CVE-2017-85197.6Critical CVE-2017-85207.6Critical CVE-2017-85217.6Critical CVE-2017-85227.6Critical CVE-2017-85234.3Warning CVE-2017-85247.6Critical CVE-2017-85294.3Warning CVE-2017-85305.8High CVE-2017-85477.6Critical CVE-2017-85487.6Critical CVE-2017-85497.6Critical CVE-2017-85554.3Warning
Microsoft official advisories	Microsoft Security Update Guide
KB list	4038788 4038782 4038783 4038792 4038799 4038781 4038777 4022719 4022726 4022714 4021558 4022724 4022727 4022715 4022725 4036586
Exploitation	The following public exploits exists for this vulnerability: https://www.exploit-db.com/exploits/42246 https://www.exploit-db.com/exploits/42473
	Find out the statistics of the vulnerabilities spreading in your region

KLA11045Multiple vulnerabilities in Microsoft Edge and Microsoft Internet Explorer

KLA11045
Multiple vulnerabilities in Microsoft Edge and Microsoft Internet Explorer