PT-2020-4321 · Microsoft · Windows Backup Service+1

Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-16976

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 an elevation of privilege vulnerability that exists when the Windows Backup Service improperly handles file operations. To exploit this, an attacker would first need to gain execution on the victim system and then could run a specially crafted application to elevate privileges. This vulnerability is associated with errors in handling objects in memory, which could allow an attacker to increase their privileges.

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

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2020-04818

CVE-2020-16976

Affected Products

Windows

Windows Backup Service

References · 7

• https://bdu.fstec.ru/vul/2020-04818 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16976 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2020-16976 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-16976 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16976 · Security Note
• https://osv.dev/vulnerability/CVE-2020-16976 · Vendor Advisory
• https://t.me/cibsecurity/15349 · Telegram Post