Vulnerability Report

CVE-2017-11156

Title: Synology Download Station RCE

Arbitrary File Access

Proof Of Concept

No public PoC currently indexed for CVE-2017-11156.

CWE Category CWE-732

Published Date Aug 14, 2017

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 7.8 CVSS v3.0

Exploit Probability (EPSS)

2.30%

Vulnerability Summary

CVE-2017-11156: Synology Download Station 3.8.x before 3.8.5-3475 and 3.x before 3.5-2984 uses weak permissions (0777) for ui/dlm/btsearch directory, which allows remote authenticated users to execute arbitrary code by uploading an executable via unspecified vectors.

Impacted Vendors

synology 1

qnap 1

Reference Links

https://www.synology.com/en-global/support/security/Synology_SA_17_28_Download_Station https://www.synology.com/en-global/support/security/Synology_SA_17_28_Download_Station

CVSS v3.0

Source Entity [email protected]

Severity HIGH

7.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

6.5

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:S/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns