CVE-2021-26561

Stack-based buffer overflow vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary code via syno_finder_site HTTP header.

CVSS v3 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.synology.com/security/advisory/Synology_SA_20_26	Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1159	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:*

cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:*

cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:*

cpe:2.3:h:synology:uc3200:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-02-26 22:15

Updated : 2022-04-26 13:16

NVD link : CVE-2021-26561

Mitre link : CVE-2021-26561

CVE.ORG link : CVE-2021-26561

JSON object : View

Products Affected

synology

diskstation_manager
skynas
skynas_firmware
vs960hd
vs960hd_firmware
uc3200
diskstation_manager_unified_controller

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

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