PT-2021-21075 · Owncloud · Owncloud Server

Published 2021-09-07 · Updated 2021-09-14 · CVE-2021-35949

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: ownCloud Server versions prior to 10.8.0

Description: The issue allows an attacker to bypass permission checks for upload only shares and list metadata about the share. This is related to the shareinfo controller in the ownCloud Server.

Recommendations: For ownCloud Server versions prior to 10.8.0, update to version 10.8.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the shareinfo controller to minimize the risk of exploitation.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2021-35949

Affected Products

Owncloud Server

References · 5

• https://owncloud.com/security-advisories/cve-2021-35949 · Vendor Advisory
• https://doc.owncloud.com/server/admin_manual/release_notes.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-35949 · Security Note
• https://osv.dev/vulnerability/CVE-2021-35949 · Vendor Advisory
• https://t.me/cibsecurity/28383 · Telegram Post