Windows DNS Query Information Disclosure Vulnerability

1) Information disclosure

EUVDB-ID: #VU6024

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-0057

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an error in Windows dnsclient when processing DNS requests. A remote unauthenticated attacker can create a specially crafted web page, trick the victim into visiting it and force the client to connect to a malicious DNS server.

Successful exploitation of this vulnerability may allow an attacker to gain access to potentially sensitive information.

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

Windows: 8.1 - 10

Windows Server: 2012 - 2016 10.0.14393.10

CPE2.3

• cpe:2.3:o:microsoft:windows:8.1 RT:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012 R2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.10:*:*:*:*:*:*

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0057

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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