Onedrive
CVE-2020-16851
HIGH
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Primary rating from Vendor (microsoft) · only source for this CVE.
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Lifecycle Timeline
1DescriptionCVE.org
<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>
AnalysisAI
<p>An elevation of privilege vulnerability exists when the OneDrive for Windows Desktop application improperly handles symbolic links. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity.
Technical ContextAI
This vulnerability is classified under CWE-59. <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 include: Microsoft Onedrive.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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<p>An elevation of privilege vulnerability exists when the OneDrive for Windows Desktop application improperly handles s
<p>An elevation of privilege vulnerability exists when the OneDrive for Windows Desktop application improperly handles s
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Same weakness CWE-59 – Improper Link Resolution Before File Access
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today