8.3
HIGH
CVE-2020-27652
Synology DiskStation Manager QuickConnect Algorithm Downgrade Vulnerability
Description

Algorithm downgrade vulnerability in QuickConnect in Synology DiskStation Manager (DSM) before 6.2.3-25426-2 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via unspecified vectors.

INFO

Published Date :

Oct. 29, 2020, 9:15 a.m.

Last Modified :

Nov. 21, 2024, 5:21 a.m.

Remotely Exploitable :

Yes !

Impact Score :

6.0

Exploitability Score :

1.6
Public PoC/Exploit Available at Github

CVE-2020-27652 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-27652 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Synology diskstation_manager
2 Synology skynas_firmware
3 Synology skynas
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-27652.

URL Resource
https://www.synology.com/security/advisory/Synology_SA_20_18 Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1061 Exploit Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_18 Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1061 Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Synology NAS file management from command-line

synology synology-nas quickconnect

Makefile Python

Updated: 1 month, 1 week ago
20 stars 1 fork 1 watcher
Born at : June 16, 2022, 4:28 a.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-27652 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-27652 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.synology.com/security/advisory/Synology_SA_20_18
    Added Reference https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1061
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Nov. 16, 2022

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 12, 2021

    Action Type Old Value New Value
    Removed CWE Synology Inc. CWE-757
    Added CWE Synology Inc. CWE-327
    Removed CWE Reason CWE-757 / CWE from CNA not within 1003 View
  • Initial Analysis by [email protected]

    Nov. 03, 2020

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:H/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
    Changed Reference Type https://www.synology.com/security/advisory/Synology_SA_20_18 No Types Assigned https://www.synology.com/security/advisory/Synology_SA_20_18 Vendor Advisory
    Changed Reference Type https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1061 No Types Assigned https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1061 Exploit, Third Party Advisory
    Added CWE NIST CWE-327
    Added CPE Configuration OR *cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.2.3-25426-2
    Added CPE Configuration AND OR *cpe:2.3:o:synology:skynas_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.2.3-25426 OR cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 29, 2020

    Action Type Old Value New Value
    Added Reference https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1061 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-27652 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.26 }} 0.14%

score

0.64870

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability