PT-2020-4149 · Microsoft · Windows Function Discovery Service+1

Yuki Chen · Published 2020-09-08 · Updated 2023-12-31 · CVE-2020-1491

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Windows Function Discovery Service (affected versions not specified)

Description: The issue is related to errors in privilege management within the Windows Function Discovery Service, allowing an attacker to potentially elevate their privileges. To exploit this, a locally authenticated attacker could run a specially crafted application, enabling them to execute code with elevated permissions. The vulnerability is addressed by ensuring the Windows Function Discovery Service properly handles objects in memory.

Recommendations: For the Windows Function Discovery Service, ensure the security update is applied to address the vulnerability by properly handling objects in memory. As a temporary workaround, consider restricting access to the Windows Function Discovery Service until the security update is applied.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

BDU:2020-04571

CVE-2020-1491

Affected Products

Windows

Windows Function Discovery Service

References · 6

• https://osv.dev/vulnerability/CVE-2020-1491 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1491 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1491 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-1491 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2020-1491 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04571 · Security Note