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CVE-2020-1337

7.8 · HIGH

An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system.

Published Aug 17, 2020CWE-367EPSS 14.07%

Overview

CVE-2020-1337 is a high-severity vulnerability. It was published on August 17, 2020 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system. An attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted script or application.

The update addresses the vulnerability by correcting how the Windows Print Spooler Component writes to the file system.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/160028/Microsoft-Windows-Local-Spooler-Bypass.htmlRefpacketstormsecurity.com/files/160993/Microsoft-Spooler-Local-Privilege-Elevation.htmlRefportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1337Refpacketstormsecurity.com/files/160028/Microsoft-Windows-Local-Spooler-Bypass.htmlRefpacketstormsecurity.com/files/160993/Microsoft-Spooler-Local-Privilege-Elevation.htmlRefportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1337

How CyberStrike helps

Frequently asked questions

What is CVE-2020-1337?

CVE-2020-1337 is a high-severity vulnerability. It was published on August 17, 2020 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2020-1337?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-1337?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-1337?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-1337 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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