PT-2021-11571 · Owncloud · Owncloud

Published 2021-02-09 · Updated 2021-02-16 · CVE-2020-28645

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Name of the Vulnerable Software and Affected Versions: ownCloud/core versions prior to 10.6

Description: The issue arises when deleting users with specific names, leading to the deletion of system files. The risk is heightened in systems that allow self-registration and have the data directory located in the web root.

Recommendations: For versions prior to 10.6, update to version 10.6 or later to resolve the issue.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2020-28645

Affected Products

Owncloud

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2020-28645 · Security Note
• https://owncloud.com/security-advisories/missing-user-validation-leading-to-information-disclosure · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-28645 · Vendor Advisory