CVE-2020-1081 Windows Printer Service Elevation of Privilege Vulnerability

High 7.8 Published Updated

An authenticated attacker can exploit improper file path validation in the Windows Printer Service to execute arbitrary code with elevated system privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-1081?

CVE-2020-1081 is a high-severity path traversal vulnerability in Microsoft Windows 10, published on 21 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An elevation of privilege vulnerability exists when the Windows Printer Service improperly validates file paths while loading printer drivers. An authenticated attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how the Windows Printer Service validates file paths.

Weakness: CWE-20

Which versions are affected by CVE-2020-1081?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2020-1081?

No fix has been published for CVE-2020-1081 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-1081 being exploited?

There is no known exploitation of CVE-2020-1081 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-9rrc-fqm2-75c6.

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