Vulnerability · Published Sep 11, 2020 · Assigned by microsoft

CVE-2020-16853OneDrive for Windows Elevation of Privilege Vulnerability

High 7.1

In plain English

A high-severity security flaw in OneDrive for Windows from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High
Exploit odds (30 days)1.0%top 37.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

<p>An elevation of privilege vulnerability exists when the OneDrive for Windows Desktop application improperly handles symbolic links. An attacker who successfully exploited this vulnerability could overwrite a targeted file with an elevated status.</p> <p>To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and delete a targeted file with an elevated status.</p> <p>The update addresses this vulnerability by correcting where the OneDrive updater performs file writes while running with elevation.</p>

Affected products (as reported)

VendorProductVersions
Microsoft OneDrive for Windows 0 – before publication

References