PT-2020-20039 · Nextcloud · Nextcloud Desktop Client

Published 2020-08-21 · Updated 2022-09-27 · CVE-2020-8227

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:H/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Nextcloud Desktop Client version 2.6.4

Description The issue is related to missing sanitization of a server response in the Nextcloud Desktop Client, which allows a malicious Nextcloud Server to store files outside of the dedicated sync directory.

Recommendations For Nextcloud Desktop Client version 2.6.4, update to a newer version that addresses this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2020-8227

Affected Products

Nextcloud Desktop Client

References · 11

• 🔥 https://hackerone.com/reports/590319 · Exploit
• 🔥 https://nextcloud.com/security/advisory/?id=NC-SA-2020-032 · Exploit
• https://ubuntu.com/security/CVE-2020-8227 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-8227 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-8227 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-8227 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-8227 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-8227 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8227 · Security Note
• https://security.gentoo.org/glsa/202009-09 · Vendor Advisory
• https://t.me/cvenotify/36861 · Telegram Post