CVE-2021-26563
Synology DiskStation Manager DSM Local Code Execution Vulnerability
Description
Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified vectors.
INFO
Published Date :
Feb. 26, 2021, 10:15 p.m.
Last Modified :
April 26, 2022, 1:45 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.5
Affected Products
The following products are affected by CVE-2021-26563
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.
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-2021-26563.
| URL | Resource |
|---|---|
| https://www.synology.com/security/advisory/Synology_SA_21_03 | Vendor Advisory |
| https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1158 | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-26563 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-26563 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Apr. 26, 2022
Action Type Old Value New Value Removed CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Removed CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.synology.com/security/advisory/Synology_SA_21_03 No Types Assigned https://www.synology.com/security/advisory/Synology_SA_21_03 Vendor Advisory Changed CPE Configuration OR *cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:* versions up to (excluding) 6.2.3-25426-3 OR *cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:* versions up to (excluding) 6.2.4-25553 -
CVE Modified by [email protected]
Jun. 18, 2021
Action Type Old Value New Value Changed Description Improper access control vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows local users to obtain sensitive information via a crafted kernel module. Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified vectors. Removed Reference https://www.synology.com/security/advisory/Synology_SA_20_26 [Vendor Advisory] Added Reference https://www.synology.com/security/advisory/Synology_SA_21_03 [No Types Assigned] -
CVE Modified by [email protected]
May. 12, 2021
Action Type Old Value New Value Removed CWE Synology Inc. CWE-284 Added CWE Synology Inc. CWE-863 Removed CWE Reason CWE-284 / CWE from CNA not within 1003 View -
Modified Analysis by [email protected]
Apr. 22, 2021
Action Type Old Value New Value Changed Reference Type https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1158 No Types Assigned https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1158 Exploit, Third Party Advisory -
CVE Modified by [email protected]
Apr. 19, 2021
Action Type Old Value New Value Added Reference https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1158 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 04, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://www.synology.com/security/advisory/Synology_SA_20_26 No Types Assigned https://www.synology.com/security/advisory/Synology_SA_20_26 Vendor Advisory Added CWE NIST CWE-863 Added CPE Configuration OR *cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:* versions up to (excluding) 6.2.3-25426-3 Added CPE Configuration AND OR *cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:* OR cpe:2.3:h:synology:uc3200:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-26563 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-26563
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile