Kaspersky Threats

Description

Multiple serious vulnerabilities have been found in Microsoft Windows. Malicious users can exploit these vulnerabilities to gain privileges, bypass security restrictions, cause a denial of service, obtain sensitive information and possibly to write local files.

Below is a complete list of vulnerabilities:

Incorrectly set permissions on folders inside the DEFAULT folder structure can be exploited locally by logging on and tampering wiht the DEFAULT folder contents possible to write local files;
An improper client authentication in Helppane.exe can be exploited locally by using a specially designed application to gain privileges;
An incorrect security feature behaviour while enforcing case sensitivity for certain variable checks can be exploited locally via a specially designed application to bypass security restrictions;
An improper handling of kernel mode requests of some specific types can be exploited via a specially designed request to cause a denial of service;
An improper handling of objects in memory in Windows Search can be exploited via specially designed SMB messages to obtain sensitive information;
An incorrect handling of objects in memory in Windows Kernel can be exploited locally via a specially designed application to obtain sensitive information.

Technical details

Exploiting vulnerability (3) can lead to bypassing UEFI (Unified Extensible Firmware Interface) variable security.

NB: Not every vulnerability already have CVSS rating so cumulative CVSS rating can be not representative.

Original advisories

CVE list

CVE-2017-0295
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CVE-2017-0298
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CVE-2017-8493
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CVE-2017-8515
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CVE-2017-8544
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CVE-2017-8553
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CVE-2017-8554
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KB list

Find out the statistics of the vulnerabilities spreading in your region on statistics.securelist.com

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Multiple vulnerabilities in Microsoft Windows