Home/CVE/Synology DiskStation Manager (DSM) before 6.2.3-25426-2 does not set the Secure flag for the session cookie in an HTTPS
CVE

CVE-2020-27650

Synology DiskStation Manager (DSM) before 6.2.3-25426-2 does not set the Secure flag for the session cookie in an HTTPS

Synology DiskStation Manager (DSM) before 6.2.3-25426-2 does not set the Secure flag for the session cookie in an HTTPS session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an HTTP session.

MEDIUM · CVSS 5.8 EPSS 0.00168
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-311Missing Encryption of Sensitive Data
CWE-614Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
▤

Affected Products & Versions

2
synology diskstation manager>= 6.2 and < 6.2.3-25426-2
synology skynas firmware< 6.2.3-25426
▣

Scoring & Timeline

5.8
MEDIUM · CVSS v3.1 · security@synology.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Oct 2020 · 09:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.synology.com/security/advisory/Synology_SA_20_18Vendor Advisory
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