PT-2020-4370 · Microsoft · Windows Backup Service+1

Yuki Chen · Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-16974

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 Backup Service (affected versions not specified)

Description: The issue is related to the improper handling of file operations by the Windows Backup Service, which can lead to an elevation of privilege. To exploit this, an attacker must first gain execution on the victim system and then run a specially crafted application to elevate privileges. The security update addresses the vulnerability by correcting how the Windows Backup Service handles file operations.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

BDU:2020-04883

BDU:2020-05463

CVE-2020-16974

Affected Products

Windows

Windows Backup Service

References · 9

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16974 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-05463 · Security Note
• https://osv.dev/vulnerability/CVE-2020-16974 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16974 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-16974 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2020-16974 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2020-16974 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04883 · Security Note
• https://t.me/cibsecurity/15349 · Telegram Post