CVE-2021-32770: Gatsby source wordpress Remote Code Execution Vulnerability
HIGHCVE-2021-32770 is a HIGH (CVSS 7.5) remote code execution vulnerability (CWE-522: Insufficiently Protected Credentials) affecting Gatsby source wordpress libraries in the npm ecosystem. The issue involves basic-auth app bundle credential exposure in gatsby-source-wordpress. Remediation is available by upgrading affected packages to version 4.0.8, 5.9.2.
CVE-2021-32770 at a Glance
Security Impact
CVSS: 7.5
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:H/I:N/A:N).
How to Fix CVE-2021-32770
To remediate this vulnerability, upgrade all affected Gatsby source wordpress dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
npm install gatsby-source-wordpress@4.0.8npm install gatsby-source-wordpress@5.9.2Run the following command in your project directory to verify that all resolved dependencies use the patched release:
npm ls gatsby-source-wordpressHow to Check if You Are Affected
To determine whether your Node.js application is affected by CVE-2021-32770, inspect your project dependencies using npm:
npm ls gatsby-source-wordpressAnalyze the terminal output to locate any version of Gatsby source wordpress in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.8), your application is affected.
Note: The npm ls gatsby-source-wordpress command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-522: Insufficiently Protected Credentials, where the product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. In Gatsby source wordpress, 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-2021-32770 Affected Gatsby source wordpress Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
gatsby-source-wordpress
|
npm |
< 4.0.8
|
4.0.8
|
|
gatsby-source-wordpress
|
npm |
≥ 5.0.0
< 5.9.2
|
5.9.2
|
References
Frequently Asked Questions
What is CVE-2021-32770?
Which Gatsby source wordpress versions are affected?
What version fixes CVE-2021-32770?
Is gatsby-source-wordpress affected?
What is the CVSS score of CVE-2021-32770?
What CWE is associated with CVE-2021-32770?
How can I check npm dependencies for CVE-2021-32770?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-rqjw-p5vr-c695",
"modified" : "2021-07-28T15:18:01Z",
"published" : "2021-07-19T15:21:41Z",
"aliases" : [ "CVE-2021-32770" ],
"summary" : "Basic-auth app bundle credential exposure in gatsby-source-wordpress",
"details" : "### Impact\nThe gatsby-source-wordpress plugin prior to versions 4.0.8 and 5.9.2 leaks .htaccess HTTP Basic Authentication variables into the app.js bundle during build-time. Users who are not initializing basic authentication credentials in the gatsby-config.js are not affected.\n\nExample affected gatsby-config.js:\n```\n resolve: 'gatsby-source-wordpress',\n auth: {\n htaccess: {\n username: leaked_username\n password: leaked_password,\n },\n },\n```\n\n### Patches\nA patch has been introduced in gatsby-source-wordpress@4.0.8 and gatsby-source-wordpress@5.9.2 which mitigates the issue by filtering all variables specified in the `auth: { }` section. Users that depend on this functionality are advised to upgrade to the latest release of gatsby-source-wordpress, run `gatsby clean` followed by a `gatsby build`.\n\n\n### Workarounds\nThere is no known workaround at this time, other than manually editing the app.js file post-build.\n\n\n### For more information\nEmail us at [security@gatsbyjs.com](mailto:security@gatsbyjs.com)",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "npm",
"name" : "gatsby-source-wordpress"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "4.0.8"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "gatsby-source-wordpress"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "5.0.0"
}, {
"fixed" : "5.9.2"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/gatsbyjs/gatsby/security/advisories/GHSA-rqjw-p5vr-c695"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-32770"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-200", "CWE-522" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2021-07-15T20:28:20Z",
"nvd_published_at" : "2021-07-15T19:15:00Z"
}
}