Drupal up to 8.2.7/8.3.0 RESTful Web Services PATCH Request access control

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Drupal up to 8.2.7/8.3.0. Affected is an unknown function of the component RESTful Web Services. Executing a manipulation as part of PATCH Request can lead to access control. The identification of this vulnerability is CVE-2017-6919. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Drupal up to 8.2.7/8.3.0 (Content Management System) and classified as critical. This vulnerability affects an unknown part of the component RESTful Web Services. The manipulation as part of a PATCH Request 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. CVE summarizes:

Drupal 8 before 8.2.8 and 8.3 before 8.3.1 allows critical access bypass by authenticated users if the RESTful Web Services (rest) module is enabled and the site allows PATCH requests.

The bug was discovered 04/19/2017. The weakness was shared 04/20/2017 (Website). The advisory is shared for download at drupal.org. This vulnerability was named CVE-2017-6919 since 03/16/2017. The attack can be initiated remotely. A single authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 99690 (Drupal 8.x < 8.2.8 / 8.3.x < 8.3.1 Access Bypass Vulnerability (SA-CORE-2017-002)), 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 11794 (Drupal Core Critical Access Bypass Vulnerability (SA-CORE-2017-002)).

Upgrading to version 8.2.8 or 8.3.1 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 (99690), SecurityFocus (BID 97941†) and SecurityTracker (ID 1038371†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: 99690
Nessus Name: Drupal 8.x < 8.2.8 / 8.3.x < 8.3.1 Access Bypass Vulnerability (SA-CORE-2017-002)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801842
OpenVAS Name: Drupal Core Access Bypass Vulnerability (SA-CORE-2017-002)-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 8.2.8/8.3.1

Timelineinfo

03/16/2017 🔍
04/19/2017 +34 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/20/2017 +1 days 🔍
04/20/2017 +0 days 🔍
04/26/2017 +6 days 🔍
04/28/2017 +2 days 🔍
12/20/2020 +1332 days 🔍

Sourcesinfo

Product: drupal.org

Advisory: drupal.org
Researcher: Samuel Mortenson
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6919 (🔍)
GCVE (CVE): GCVE-0-2017-6919
GCVE (VulDB): GCVE-100-100264
SecurityFocus: 97941 - Drupal CVE-2017-6919 Access Bypass Vulnerability
OSVDB: - CVE-2017-6919 - Drupal - Security Bypass Issue
SecurityTracker: 1038371

Entryinfo

Created: 04/20/2017 09:46
Updated: 12/20/2020 22:20
Changes: 04/20/2017 09:46 (77), 09/22/2020 11:34 (6), 12/20/2020 22:20 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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