PT-2020-16746 · Openvpn+1 · Openvpn+1

Published 2020-10-29 · Updated 2025-01-14 · CVE-2020-27648

Positive Technologies (AI Summary)

CVSS v3.1

9.0

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Synology DiskStation Manager (DSM) versions prior to 6.2.3-25426-2

Description The issue is related to improper certificate validation in the OpenVPN client, allowing man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Recommendations For versions prior to 6.2.3-25426-2, update to version 6.2.3-25426-2 or later to resolve the issue.

Exploit

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2020-27648

Affected Products

Openvpn

Synology Diskstation Manager

References · 5

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2020-1058 · Exploit
• https://osv.dev/vulnerability/CVE-2020-27648 · Vendor Advisory
• https://synology.com/security/advisory/Synology_SA_20_18 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27648 · Security Note
• https://t.me/cvenotify/5389 · Telegram Post