Multiple vulnerabilities in Microsoft Windows

1) Privilege escalation

EUVDB-ID: #VU975

Risk: Medium

CVSSv3.1: 8.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2016-7182

Exploit availability: Yes

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to boundary error in the Microsoft Windows kernel-mode driver (Win32k). By running a malicious program on the affected system attackers can execute arbitrary code with SYSTEM privileges.

Successful exploitation of the vulnerability may result in a complete system compromise.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Office: 2010

Windows: Vista - 10

Windows Server: 2008 R2 - 2008

Word Viewer: 2007

Microsoft Lync: 2010 - 2013

Lync Attendee: 2010

Microsoft Live Meeting: 2007 Console

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/MS16-120

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Arbitrary code execution

EUVDB-ID: #VU963

Risk: Critical

CVSSv3.1: 9.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:U/RC:C]

CVE-ID: CVE-2016-3393

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error in the Graphics Device Interface (GDI) component. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Mitigation

Install upfate from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 3.0 - 4.6

Microsoft Office: 2007 - 2010

Microsoft Silverlight: 5

Windows: Vista - 10

Windows Server: 2008 R2 - 2008

Microsoft Lync: 2010

Lync Attendee: 2010

Microsoft Live Meeting: 2007 Console

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/MS16-120

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

3) Memory corruption

EUVDB-ID: #VU965

Risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2016-3396

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error in the Graphics Device Interface (GDI) component. A remote attacker can create a specially crafted content containing embedded fonts, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 3.0 - 4.6

Microsoft Office: 2007 - 2010

Microsoft Silverlight: 5

Windows: Vista - 10

Windows Server: 2008 R2 - 2008

Microsoft Lync: 2010

Lync Attendee: 2010

Microsoft Live Meeting: 2007 Console

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/MS16-120

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Information disclosure

EUVDB-ID: #VU959

Risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-3209

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: Yes

Description

The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The weakness exists due to boundary error in the Graphics Device Interface (GDI) component. A local attacker can execute a specially crafted program on the affected system, get information about system memory state, bypass Address Space Layout Randomization (ASLR) and conduct further attacks.

Successful exploitation of the vulnerability will result in information disclosure on the vulnerable system.

Mitigation

Install update fron vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 3.0 - 4.6

Microsoft Office: 2007 - 2010

Microsoft Silverlight: 5

Windows: Vista - 10

Windows Server: 2008 R2 - 2008

Microsoft Lync: 2010

Lync Attendee: 2010

Microsoft Live Meeting: 2007 Console

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/MS16-120

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

5) Information disclosure

EUVDB-ID: #VU960

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3262

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The weakness exists due to boundary error in the Graphics Device Interface (GDI) component. A local attacker can execute a specially crafted program on the affected system, get information about system memory state, bypass Address Space Layout Randomization (ASLR) and conduct further attacks.

Successful exploitation of the vulnerability will result in information disclosure on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 3.0 - 4.6

Microsoft Office: 2007 - 2010

Microsoft Silverlight: 5

Windows: Vista - 10

Windows Server: 2008 R2 - 2008

Microsoft Lync: 2010

Lync Attendee: 2010

Microsoft Live Meeting: 2007 Console

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/MS16-120

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Information disclosure

EUVDB-ID: #VU961

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3263

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The weakness exists due to boundary error in the Graphics Device Interface (GDI) component. A local attacker can execute a specially crafted program on the affected system, get information about system memory state, bypass Address Space Layout Randomization (ASLR) and conduct further attacks.

Successful exploitation of the vulnerability will result in information disclosure on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 3.0 - 4.6

Microsoft Office: 2007 - 2010

Microsoft Silverlight: 5

Windows: Vista - 10

Windows Server: 2008 R2 - 2008

Microsoft Lync: 2010

Lync Attendee: 2010

Microsoft Live Meeting: 2007 Console

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/MS16-120

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Privilege escalation

EUVDB-ID: #VU962

Risk: Medium

CVSSv3.1: 8.1 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2016-3270

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to boundary error in the Microsoft Windows kernel-mode driver (Win32k). By running a malicious program on the affected system attackers can execute arbitrary code with SYSTEM privileges.

Successful exploitation of the vulnerability may result in a complete system compromise.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: Vista - 10

Windows Server: 2008 R2 - 2008

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/MS16-120

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Risk	Critical
Patch available	YES
Number of vulnerabilities	7
CVE-ID	CVE-2016-7182 CVE-2016-3393 CVE-2016-3396 CVE-2016-3209 CVE-2016-3262 CVE-2016-3263 CVE-2016-3270
CWE-ID	CWE-119 CWE-401 CWE-264
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available. Vulnerability #2 is being exploited in the wild. Public exploit code for vulnerability #4 is available.
Vulnerable software	Microsoft Office Client/Desktop applications / Office applications Word Viewer Client/Desktop applications / Office applications Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system Microsoft Lync Client/Desktop applications / Messaging software Lync Attendee Client/Desktop applications / Messaging software Microsoft Live Meeting Client/Desktop applications / Messaging software Microsoft .NET Framework Server applications / Frameworks for developing and running applications Microsoft Silverlight Client/Desktop applications / Plugins for browsers, ActiveX components
Vendor	Microsoft