Windows Kernel Information Disclosure Vulnerability
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2017-8491 CVE-2017-8472 |
| CWE-ID | CWE-200 |
| Exploitation vector | Local |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. |
| Vulnerable software |
Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU7040
Risk: Low
CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2017-8491
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
DescriptionThe vulnerability allows a local authenticated attacker to obtain potentially sensitive information on the target system.
The weakness exists due to improper initialization of objects in memory by the Windows kernel. A local attacker can run a specially crafted application and obtain information to perform further attacks.
Successful exploitation of the vulnerability results in information disclosure.
Install updates from Microsoft website.
Vulnerable software versionsWindows: 7 - 10
Windows Server: 2008 R2 - 2016 10.0.14393.10
CPE2.3- cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:8.1:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.10:*:*:*:*:*:*
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8491
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. However, proof of concept for this vulnerability is available.
2) Information disclosure
EUVDB-ID: #VU7094
Risk: Low
CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2017-8472
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
An information disclosure vulnerability exists when the Windows kernel improperly initializes objects in memory within win32k.sys system driver. A local user can obtain portions of potentially sensitive information from system memory.
MitigationInstall updates from Microsoft website.
Vulnerable software versionsWindows: 7
Windows Server: 2008 R2 - 2012
CPE2.3https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8472
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. However, proof of concept for this vulnerability is available.
