PT-2020-4375 · Microsoft · Windows User Profile Service+1

Abdelhamid Naceri · Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-16940

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 User Profile Service (ProfSvc) (affected versions not specified)

Description: The issue is related to the improper handling of junction points by the Windows User Profile Service (ProfSvc), which can allow an attacker to elevate their privileges. This can be achieved by running a specially crafted application, potentially allowing the deletion of files and folders in an elevated context. The attacker would first need to log on to the system to exploit this issue.

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

LPE

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

BDU:2020-04888

BDU:2020-05462

CVE-2020-16940

ZDI-20-1248

Affected Products

Windows

Windows User Profile Service

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2020-16940 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-20-1248 · Security Note
• https://bdu.fstec.ru/vul/2020-04888 · Security Note
• https://bdu.fstec.ru/vul/2020-05462 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2020-16940 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16940 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-16940 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16940 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2020-16940 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2020101367 · Note