Vulnerability identifier: #VU21668

Vulnerability risk: Low

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

CVE-ID: CVE-2019-1315

CWE-ID: CWE-65

Exploitation vector: Local

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 local user to escalate privileges on the system.

The vulnerability exists due to the way Windows Error Reporting manager handles hard links. A local user can create a malicious application, launch it on the system, overwrite a targeted file leading to an elevated status and take control of an affected system.

To exploit this vulnerability, an attacker would first have to log on to the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8.1 - 8.1 RT, 10 1607 10.0.14393.10, 10 1703 10.0.15063.138, 10 1709 10.0.16299.19, 10 1803 10.0.17134.48, 10 1809 10.0.17763.1, 10 1903 10.0.18362.116

Windows Server: 2008 - 2019 1903

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1315

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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.