CVE-2020-2303: Active directory CSRF Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-2wf5-4mf7-vmh3
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CVSS 4.3
CWE-352
Published
Advisory Summary

CVE-2020-2303 is a MODERATE (CVSS 4.3) csrf vulnerability vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Active directory libraries in the Maven ecosystem. The issue involves csrf vulnerability in jenkins active directory plugin. Remediation is available by upgrading affected packages to version 2.20.

CVE-2020-2303 at a Glance

CVE Identifier CVE-2020-2303
GHSA Identifier GHSA-2wf5-4mf7-vmh3
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Active directory
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.3

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

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 None (A:N)

How to Fix CVE-2020-2303

To remediate this vulnerability, upgrade all affected Active directory 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:active-directory fixed: 2.20 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>active-directory</artifactId>
    <version>2.20</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-2020-2303, 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 Active directory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.20), 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 Active directory, 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 Active Directory Plugin 2.19 and earlier does not require POST requests for multiple HTTP endpoints implementing connection and authentication tests, resulting in cross-site request forgery (CSRF) vulnerabilities. This vulnerability allows attackers to perform connection tests, connecting to attacker-specified or previously configured Active Directory servers using attacker-specified credentials. Active Directory Plugin 2.20 requires POST requests for the affected HTTP endpoints.

CVE-2020-2303 Affected Active directory Versions

1 component(s)
Fixed Versions:
2.20
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:active-directory
maven/org.jenkins-ci.plugins/active-directory
Maven
< 2.20
2.20

References

NVD — CVE-2020-2303 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2303
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/active-directory-plugin/commit/3558971237b80e71e913ead9e82a722e9d5576b8
Active directory Source Repository REPOSITORY
https://github.com/jenkinsci/active-directory-plugin
Active directory Security Information SECURITY
https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2126
Active directory Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/11/04/6

Frequently Asked Questions

What is CVE-2020-2303?
CVE-2020-2303 is a security vulnerability in Active directory involving CSRF vulnerability in Jenkins Active Directory Plugin under CWE-352: Cross-Site Request Forgery (CSRF).
Which Active directory versions are affected?
Affected versions include releases prior to 2.20 across affected packages: org.jenkins-ci.plugins:active-directory.
What version fixes CVE-2020-2303?
Upgrading to 2.20 (or the latest patched release for your respective branch) resolves the vulnerability.
Is active-directory affected?
Yes, org.jenkins-ci.plugins:active-directory is affected in releases prior to 2.20. Upgrade your dependency to 2.20 or later.
What is the CVSS score of CVE-2020-2303?
CVE-2020-2303 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2020-2303?
CVE-2020-2303 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-2020-2303?
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-2wf5-4mf7-vmh3",
  "modified" : "2023-10-27T12:04:36Z",
  "published" : "2022-05-24T17:33:07Z",
  "aliases" : [ "CVE-2020-2303" ],
  "summary" : "CSRF vulnerability in Jenkins Active Directory Plugin",
  "details" : "Jenkins Active Directory Plugin 2.19 and earlier does not require POST requests for multiple HTTP endpoints implementing connection and authentication tests, resulting in cross-site request forgery (CSRF) vulnerabilities.\n\nThis vulnerability allows attackers to perform connection tests, connecting to attacker-specified or previously configured Active Directory servers using attacker-specified credentials.\n\nActive Directory Plugin 2.20 requires POST requests for the affected HTTP endpoints.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:active-directory"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.20"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2303"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/active-directory-plugin/commit/3558971237b80e71e913ead9e82a722e9d5576b8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/active-directory-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2126"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/11/04/6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-21T19:36:47Z",
    "nvd_published_at" : "2020-11-04T15:15:00Z"
  }
}