CVE-2020-13667: Drupal/core Drupal Core Access Bypass Vulnerability Vulnerability
MODERATECVE-2020-13667 is a MODERATE (CVSS 5.3) drupal core access bypass vulnerability vulnerability (CWE-276: Incorrect Default Permissions) affecting Drupal/core libraries in the Packagist ecosystem. The issue involves drupal core access bypass vulnerability. Remediation is available by upgrading affected packages to version 8.8.10, 8.9.6, 9.0.6.
CVE-2020-13667 at a Glance
Security Impact
CVSS: 5.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
How to Fix CVE-2020-13667
To remediate this vulnerability, upgrade all affected Drupal/core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade drupal/core to 8.8.10Upgrade drupal/core to 8.9.6Upgrade drupal/core to 9.0.6Upgrade drupal/drupal to 8.8.10Upgrade drupal/drupal to 8.9.6Upgrade drupal/drupal to 9.0.6Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for drupal/coreHow to Check if You Are Affected
To determine whether your application is affected by CVE-2020-13667, inspect your project dependencies for Drupal/core:
inspect dependencies for drupal/coreAnalyze the terminal output to locate any version of Drupal/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.8.10), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-276: Incorrect Default Permissions, where during installation, installed file permissions are set to allow anyone to modify those files. In Drupal/core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2020-13667 Affected Drupal/core Versions
6 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
drupal/core
|
Packagist |
≥ 8.8.0
< 8.8.10
|
8.8.10
|
|
drupal/core
|
Packagist |
≥ 8.9.0
< 8.9.6
|
8.9.6
|
|
drupal/core
|
Packagist |
≥ 9.0.0
< 9.0.6
|
9.0.6
|
|
drupal/drupal
|
Packagist |
≥ 8.8.0
< 8.8.10
|
8.8.10
|
|
drupal/drupal
|
Packagist |
≥ 8.9.0
< 8.9.6
|
8.9.6
|
|
drupal/drupal
|
Packagist |
≥ 9.0.0
< 9.0.6
|
9.0.6
|
References
Frequently Asked Questions
What is CVE-2020-13667?
Which Drupal/core versions are affected?
What version fixes CVE-2020-13667?
Is drupal/core affected?
Is drupal/drupal affected?
What is the CVSS score of CVE-2020-13667?
What CWE is associated with CVE-2020-13667?
How can I check Packagist dependencies for CVE-2020-13667?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-x2q9-r8gm-f657",
"modified" : "2024-04-23T22:30:49Z",
"published" : "2022-05-24T19:02:37Z",
"aliases" : [ "CVE-2020-13667" ],
"summary" : "Drupal Core Access bypass vulnerability ",
"details" : "Access bypass vulnerability in of Drupal Core Workspaces allows an attacker to access data without correct permissions. The Workspaces module doesn't sufficiently check access permissions when switching workspaces, leading to an access bypass vulnerability. An attacker might be able to see content before the site owner intends people to see the content. This vulnerability is mitigated by the fact that sites are only vulnerable if they have installed the experimental Workspaces module. This issue affects Drupal Core8.8.X versions prior to 8.8.10; 8.9.X versions prior to 8.9.6; 9.0.X versions prior to 9.0.6.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Packagist",
"name" : "drupal/core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "8.8.0"
}, {
"fixed" : "8.8.10"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "drupal/core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "8.9.0"
}, {
"fixed" : "8.9.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "drupal/core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "9.0.0"
}, {
"fixed" : "9.0.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "drupal/drupal"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "8.8.0"
}, {
"fixed" : "8.8.10"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "drupal/drupal"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "8.9.0"
}, {
"fixed" : "8.9.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "drupal/drupal"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "9.0.0"
}, {
"fixed" : "9.0.6"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-13667"
}, {
"type" : "WEB",
"url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13667.yaml"
}, {
"type" : "WEB",
"url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13667.yaml"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/drupal/core"
}, {
"type" : "WEB",
"url" : "https://www.drupal.org/sa-core-2020-008"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-276" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2024-04-23T22:30:49Z",
"nvd_published_at" : "2021-05-17T17:15:00Z"
}
}