7.8
HIGH
CVE-2017-11156
Synology Download Station RCE Vulnerability
Description

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.

INFO

Published Date :

Aug. 14, 2017, 7:29 p.m.

Last Modified :

Oct. 9, 2019, 11:21 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2017-11156 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.

ID Vendor Product Action
1 Synology download_station
: Total Affected Vendor : 1 | Products : 1
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-2017-11156.

URL Resource
https://www.synology.com/en-global/support/security/Synology_SA_17_28_Download_Station Vendor 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-2017-11156 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-11156 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
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE Synology Inc. CWE-276
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-264 CWE-732
  • Initial Analysis by [email protected]

    Aug. 25, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.synology.com/en-global/support/security/Synology_SA_17_28_Download_Station No Types Assigned https://www.synology.com/en-global/support/security/Synology_SA_17_28_Download_Station Vendor Advisory
    Added CWE CWE-264
    Added CPE Configuration OR *cpe:2.3:a:synology:download_station:3.2-2295:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.3-2382:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.3-2383:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.3-2386:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2477:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2478:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2480:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2485:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2486:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2489:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2490:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2514:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2555:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2557:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.4-2558:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2638:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2705:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2706:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2955:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2956:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2962:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2963:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2967:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2968:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2970:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2973:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2980:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.5-2982:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.8.0-3416:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.8.1-3420:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.8.2-3455:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.8.3-3458:*:*:*:*:*:*:* *cpe:2.3:a:synology:download_station:3.8.4-3468:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-11156 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-2017-11156 weaknesses.

CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs Accessing Functionality Not Properly Constrained by ACLs CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering CAPEC-127: Directory Indexing Directory Indexing CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs Accessing Functionality Not Properly Constrained by ACLs CAPEC-17: Using Malicious Files Using Malicious Files CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-61: Session Fixation Session Fixation CAPEC-62: Cross Site Request Forgery Cross Site Request Forgery CAPEC-122: Privilege Abuse Privilege Abuse CAPEC-127: Directory Indexing Directory Indexing CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels Exploiting Incorrectly Configured Access Control Security Levels CAPEC-206: Signing Malicious Code Signing Malicious Code CAPEC-234: Hijacking a privileged process Hijacking a privileged process CAPEC-642: Replace Binaries Replace Binaries
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.56 }} 0.15%

score

0.77193

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: