CVE-2021-21644: Config file provider CSRF Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-998m-f2x3-jjq4
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CVSS 5.4
CWE-352
Published
Advisory Summary

CVE-2021-21644 is a MODERATE (CVSS 5.4) csrf vulnerability vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Config file provider libraries in the Maven ecosystem. The issue involves csrf vulnerability in jenkins config file provider plugin allows deleting configuration files. Remediation is available by upgrading affected packages to version 3.7.1.

CVE-2021-21644 at a Glance

CVE Identifier CVE-2021-21644
GHSA Identifier GHSA-998m-f2x3-jjq4
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Config file provider
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.4

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:R/S:U/C:N/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2021-21644

To remediate this vulnerability, upgrade all affected Config file provider dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.jenkins-ci.plugins:config-file-provider fixed: 3.7.1 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>config-file-provider</artifactId>
    <version>3.7.1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.jenkins-ci.plugins

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-21644, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jenkins-ci.plugins

Analyze the terminal output to locate any version of Config file provider in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.7.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.plugins command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-352: Cross-Site Request Forgery (CSRF), where the web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. In Config file provider, 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

Jenkins Config File Provider Plugin 3.7.0 and earlier does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnerability. This vulnerability allows attackers to delete configuration files corresponding to an attacker-specified ID. This is due to an incomplete fix of [SECURITY-938](https://www.jenkins.io/security/advisory/2018-09-25/#SECURITY-938). Jenkins Config File Provider Plugin 3.7.1 requires POST requests for the affected HTTP endpoint.

CVE-2021-21644 Affected Config file provider Versions

1 component(s)
Fixed Versions:
3.7.1
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:config-file-provider
maven/org.jenkins-ci.plugins/config-file-provider
Maven
< 3.7.1
3.7.1

References

NVD — CVE-2021-21644 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21644
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/config-file-provider-plugin/commit/9ffc32379477c4395ab17ff19b04b9f1286ceedb
Config file provider Source Repository REPOSITORY
https://github.com/jenkinsci/config-file-provider-plugin
Config file provider Security Information SECURITY
https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2202
Config file provider Security Information SECURITY
http://www.openwall.com/lists/oss-security/2021/04/21/2

Frequently Asked Questions

What is CVE-2021-21644?
CVE-2021-21644 is a security vulnerability in Config file provider involving CSRF vulnerability in Jenkins Config File Provider Plugin allows deleting configuration files under CWE-352: Cross-Site Request Forgery (CSRF).
Which Config file provider versions are affected?
Affected versions include releases prior to 3.7.1 across affected packages: org.jenkins-ci.plugins:config-file-provider.
What version fixes CVE-2021-21644?
Upgrading to 3.7.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is config-file-provider affected?
Yes, org.jenkins-ci.plugins:config-file-provider is affected in releases prior to 3.7.1. Upgrade your dependency to 3.7.1 or later.
What is the CVSS score of CVE-2021-21644?
CVE-2021-21644 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L.
What CWE is associated with CVE-2021-21644?
CVE-2021-21644 is classified under CWE-352: Cross-Site Request Forgery (CSRF) (The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.).
How can I check Maven dependencies for CVE-2021-21644?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.plugins'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-998m-f2x3-jjq4",
  "modified" : "2023-10-27T14:22:04Z",
  "published" : "2022-05-24T17:48:05Z",
  "aliases" : [ "CVE-2021-21644" ],
  "summary" : "CSRF vulnerability in Jenkins Config File Provider Plugin allows deleting configuration files",
  "details" : "Jenkins Config File Provider Plugin 3.7.0 and earlier does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnerability.\n\nThis vulnerability allows attackers to delete configuration files corresponding to an attacker-specified ID.\n\nThis is due to an incomplete fix of [SECURITY-938](https://www.jenkins.io/security/advisory/2018-09-25/#SECURITY-938).\n\nJenkins Config File Provider Plugin 3.7.1 requires POST requests for the affected HTTP endpoint.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:config-file-provider"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.7.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.7.0"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-21644"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/config-file-provider-plugin/commit/9ffc32379477c4395ab17ff19b04b9f1286ceedb"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/config-file-provider-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2202"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2021/04/21/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-13T19:26:33Z",
    "nvd_published_at" : "2021-04-21T15:15:00Z"
  }
}