Vulnerability identifier: #VU7457

Vulnerability risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8582

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system
Microsoft IIS
Server applications / Web servers

Vendor: Microsoft

Description

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

The vulnerability exists due to boundary error when processing objects in memory in HTTP.sys server application component. A remote attacker can send a specially crafted request to an application, which uses HTTP.sys component and gain access to potentially sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 8.1 - 8.1 RT, 7

Windows Server: 2008 - 2016 10.0.14393.10

Microsoft IIS: 7.5 - 10.0

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8582

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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.