Multiple vulnerabilities in Microsoft Windows
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2016-7214 CVE-2016-7215 CVE-2016-7218 CVE-2016-7246 CVE-2016-7255 |
| CWE-ID | CWE-119 |
| Exploitation vector | Local |
| Public exploit | Vulnerability #5 is being exploited in the wild. |
| Vulnerable software Subscribe |
Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU5323
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-2016-7214
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists due to boundary error when handling objects by the kernel. A local attacker can run a specially crafted program, trigger memory corruption, gain access to important data allowing to bypass Kernel Address Space Layout Randomization (ASLR).
Successful exploitation of the vulnerability results in information disclosure on the vulnerable system.
MitigationInstall update from vendor's website.
Windows: 7 - Vista
Windows Server: 2008 - 2016
External linkshttp://technet.microsoft.com/en-us/library/security/ms16-135
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.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Privilege escalation
EUVDB-ID: #VU5324
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-7215
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain elevated privileges on the target system.
The weakness is due to improper handling of objects in memory by win32k.sys. By running a specially crafted program, a local attacker can trigger memory corruption and execute arbitrary code with system privileges.
Successful explotation of the vulnerability results in privilege escalation.
Install update from vendor's website.
Windows: 7 - Vista
Windows Server: 2008 - 2016
External linkshttp://technet.microsoft.com/en-us/library/security/ms16-135
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.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Information disclosure
EUVDB-ID: #VU5325
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-7218
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists due to improper handling of objects in memory by bowser.sys. A local attacker can execute a specially crafted program and gain access to important data on the affected system.
Successful exploitation of the vulnerability results in information disclosure on the vulnerable system.
MitigationInstall update from vendor's website.
Windows: 7 - Vista
Windows Server: 2008 R2 - 2016
External linkshttp://technet.microsoft.com/en-us/library/security/ms16-135
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.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Privilege escalation
EUVDB-ID: #VU5326
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-7246
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain elevated privileges on the target system.
The weakness is due to improper handling of objects in memory in win32k.sys. By running a specially crafted program, a local attacker can trigger memory corruption and execute arbitrary code with system privileges.
Successful explotation of the vulnerability results in privilege escalation.
MitigationInstall update from vendor's website.
Windows: 7 - 10
Windows Server: 2008 R2 - 2016
External linkshttp://technet.microsoft.com/en-us/library/security/ms16-135
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.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Privilege escalation
EUVDB-ID: #VU1116
Risk: Medium
CVSSv3.1: 8.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:U/RC:C]
CVE-ID: CVE-2016-7255
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
Description
The vulnerability allows a local user to gain elevated privileges on the target system.
The weakness is due to improper handling of objects in memory by win32k.sys. By sending a specially crafted system call NtSetWindowLongPtr(), a local attacker can set index GWLP_ID to WS_CHILD value on a window handle with GWL_STYLE and execute arbitrary code with system privileges.
Successful explotation of the vulnerability results in privilege escalation.
Note: this vulnerability is being actively exploited in the wild.
Install update from vendor's website.
Windows: 7 - Vista
Windows Server: 2008 - 2016
External linkshttp://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html
http://technet.microsoft.com/library/security/MS16-135
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.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
