5.3
MEDIUM
CVE-2017-6928
Drupal Private File System Access Bypass vulnerability
Description

Drupal core 7.x versions before 7.57 when using Drupal's private file system, Drupal will check to make sure a user has access to a file before allowing the user to view or download it. This check fails under certain conditions in which one module is trying to grant access to the file and another is trying to deny it, leading to an access bypass vulnerability. This vulnerability is mitigated by the fact that it only occurs for unusual site configurations.

INFO

Published Date :

March 1, 2018, 11:29 p.m.

Last Modified :

Oct. 3, 2019, 12:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

1.6
Affected Products

The following products are affected by CVE-2017-6928 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 Debian debian_linux
1 Drupal drupal
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-2017-6928.

URL Resource
https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html Third Party Advisory
https://www.debian.org/security/2018/dsa-4123 Issue Tracking
https://www.drupal.org/sa-core-2018-001 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-2017-6928 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-6928 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
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-284 CWE-732
  • Initial Analysis by [email protected]

    Mar. 21, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:S/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html Third Party Advisory
    Changed Reference Type https://www.drupal.org/sa-core-2018-001 No Types Assigned https://www.drupal.org/sa-core-2018-001 Vendor Advisory
    Changed Reference Type https://www.debian.org/security/2018/dsa-4123 No Types Assigned https://www.debian.org/security/2018/dsa-4123 Issue Tracking
    Added CWE CWE-284
    Added CPE Configuration OR *cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* versions from (including) 7.0 up to (excluding) 7.57
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 03, 2018

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2018/dsa-4123 [No Types Assigned]
    Added Reference https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html [No Types Assigned]
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.
Exploit Prediction

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

0.09 }} 0.00%

score

0.36143

percentile

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