KLA10870
Multiple vulnerabilities in Microsoft Windows

Multiple serious vulnerabilities have been found in Windows. Malicious users can exploit these vulnerabilities to cause denial of service. execute arbitrary code, obtain sensitive information or gain privileges.

Below is a complete list of vulnerabilities

1. An improper memory objects handling can be exploited by logged in attacker via a specially designed application to gain privileges or obtain sensitive information;
2. An improper memory objects handling can be exploited remotely via a specially designed file or data to execute arbitrary code or cause denial of service;
3. An improper permissions handling can be exploited locally via DLL hijack to gain privileges;
4. An improper NTLM messages request validation can be exploited remotely via a specially designed content to obtain sensitive information;
5. An improper sessions objects handling can be exploited locally via a specially designed application to gain privileges;
6. Lack of information access restrictions can be exploited locally via a specially designed application to gain privileges;
7. Lack of web-content loading restrictions can be exploited by attacker with physical access to execute arbitrary code;
8. An improper requests handling can be exploited remotely via a specially designed SMB server to execute arbitrary code;
9. An improper memory objects handling can be exploited remotely via a specially designed content to obtain sensitive information;
10. An improper memory objects access can be exploited remotely via a specially designed content to execute arbitrary code.

Technical details

Vulnerability (4) can be mitigated via usage of enterprise perimeter firewall.

To exploit vulnerability (8) attacker must be able to establish an authenticated SMBv1 session to the SMBv1 Server. To mitigate this vulnerability you can disable SMBv1. For further instructions take a look at original advisory listed below.

Microsoft Windows Vista Service Pack 2
Microsoft Windows Server 2008 Service Pack 2
Microsoft Windows 7 Service Pack 1
Microsoft Windows Server 2008 R2 Service Pack 1
Microsoft Windows 8.1
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Microsoft Windows RT 8.1
Microsoft Windows 10
Microsoft Windows 10 1511
Microsoft Windows 10 1607

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