Drupal up to 8.2.6 Editor access control

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Drupal up to 8.2.6. It has been rated as critical. The affected element is an unknown function of the component Committer. This manipulation causes access control. This vulnerability appears as CVE-2017-6377. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Drupal up to 8.2.6 (Content Management System) and classified as critical. Affected by this vulnerability is an unknown function of the component Editor. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

When adding a private file via the editor in Drupal 8.2.x before 8.2.7, the editor will not correctly check access for the file being attached, resulting in an access bypass.

The bug was discovered 03/15/2017. The weakness was presented 03/16/2017 (Website). It is possible to read the advisory at drupal.org. This vulnerability is known as CVE-2017-6377 since 02/28/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 97942 (Drupal 8.x < 8.2.7 Multiple Vulnerabilities (SA-2017-001)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276566 (Fedora Security Update for drupal8 (FEDORA-2017-9801754fd7)).

Upgrading to version 8.2.7 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97942), SecurityFocus (BID 96919†) and SecurityTracker (ID 1038058†). See VDB-98204 and VDB-98205 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97942
Nessus Name: Drupal 8.x < 8.2.7 Multiple Vulnerabilities (SA-2017-001)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801842
OpenVAS Name: Drupal Multiple Vulnerabilities Jan17 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Drupal 8.2.7

Timelineinfo

02/28/2017 🔍
03/15/2017 +15 days 🔍
03/15/2017 +0 days 🔍
03/15/2017 +0 days 🔍
03/16/2017 +1 days 🔍
03/16/2017 +0 days 🔍
03/16/2017 +0 days 🔍
03/17/2017 +1 days 🔍
03/24/2017 +7 days 🔍
09/09/2020 +1265 days 🔍

Sourcesinfo

Product: drupal.org

Advisory: drupal.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6377 (🔍)
GCVE (CVE): GCVE-0-2017-6377
GCVE (VulDB): GCVE-100-98203
SecurityFocus: 96919 - Drupal Core DRUPAL-SA-CORE-2017-001 Multiple Security Vulnerabilities
OSVDB: - CVE-2017-6377 - Drupal - Security Bypass Issue
SecurityTracker: 1038058

See also: 🔍

Entryinfo

Created: 03/17/2017 07:52
Updated: 09/09/2020 14:28
Changes: 03/17/2017 07:52 (77), 09/09/2020 14:28 (6)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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