PT-2017-11781 · Synology · Synology Download Station

Published 2017-08-14 · Updated 2019-10-09 · CVE-2017-11156

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Synology Download Station versions 3.8.x before 3.8.5-3475 Synology Download Station versions 3.x before 3.5-2984

Description The issue allows remote authenticated users to execute arbitrary code by uploading an executable via unspecified vectors due to weak permissions (0777) for the ui/dlm/btsearch directory.

Recommendations For Synology Download Station versions 3.8.x before 3.8.5-3475, update to version 3.8.5-3475 or later. For Synology Download Station versions 3.x before 3.5-2984, update to version 3.5-2984 or later.

Fix

Incorrect Permission

Incorrect Default Permissions

Weakness Enumeration

CWE-732

CWE-276

Related Identifiers

CVE-2017-11156

Affected Products

Synology Download Station

References · 3

• https://osv.dev/vulnerability/CVE-2017-11156 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-11156 · Security Note
• https://synology.com/en-global/support/security/Synology_SA_17_28_Download_Station · Vendor Advisory