PT-2020-19959 · Nextcloud+1 · Nextcloud Server+1

Published 2018-12-05 · Updated 2020-02-11 · CVE-2020-8122

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Server version 14.0.3

Description A missing check in the software could allow a recipient to extend the expiration date of a shared item they received.

Recommendations For Nextcloud Server version 14.0.3, update to a version that includes the fix for this issue to prevent recipients from extending the expiration date of shared items.

Exploit

Fix

Improper Access Control

RCE

Weakness Enumeration

CWE-284

CWE-20

Related Identifiers

ALT-PU-2018-2775

CVE-2020-8122

Affected Products

Alt Linux

Nextcloud Server

References · 4

• 🔥 https://hackerone.com/reports/447494 · Exploit
• https://nextcloud.com/security/advisory/?id=NC-SA-2019-002 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8122 · Security Note
• https://osv.dev/vulnerability/CVE-2020-8122 · Vendor Advisory