PT-2020-4339 · Microsoft · Windows Backup Service+1

Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-16975

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 improper handling of file operations by the Windows Backup Service, which can lead to an elevation of privilege. This occurs due to errors in handling objects in memory, allowing an attacker to potentially elevate their privileges. To exploit this, an attacker would first need to gain execution on the victim system and then run a specially crafted application. The vulnerability can be addressed 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

Buffer Overflow

Weakness Enumeration

CWE-269

CWE-119

Related Identifiers

BDU:2020-04839

BDU:2020-05444

CVE-2020-16975

Affected Products

Windows

Windows Backup Service

References · 10

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16975 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2020-16975 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-16975 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-16975 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-05444 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16975 · Security Note
• https://bdu.fstec.ru/vul/2020-04839 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-16975 · Security Note
• https://t.me/cibsecurity/15349 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2020101316 · Note