Vulnerability identifier: #VU18173

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0688

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

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

The vulnerability exists due to improper validation of fragmented IP packets within the Windows TCP/IP stack. A remote attacker can send specially crafted fragmented IP packets to the affected system and gain access to sensitive information, such as resource ids, sas tokens, user properties, etc.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 8.1 - 8.1 RT, 10 - 10 1809

Windows Server: 2012 - 2019 1803

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0688

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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.