CVE-2019-1003009: Active directory Improper Certificate Validation Vulnerability

HIGH
Advisory Identifier: GHSA-2h95-4xw9-m68j
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CVSS 7.4
CWE-295
Published
Advisory Summary

CVE-2019-1003009 is a HIGH (CVSS 7.4) improper certificate validation vulnerability (CWE-295: Improper Certificate Validation) affecting Active directory libraries in the Maven ecosystem. The issue involves jenkins active directory plugin improper certificate validation with starttls. Remediation is available by upgrading affected packages to version 2.11.

CVE-2019-1003009 at a Glance

CVE Identifier CVE-2019-1003009
GHSA Identifier GHSA-2h95-4xw9-m68j
Severity HIGH
CVSS v3.1 Base Score 7.4
CWE Classification CWE-295: Improper Certificate Validation
Affected Product Active directory
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).

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

How to Fix CVE-2019-1003009

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: 2.11 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>active-directory</artifactId>
    <version>2.11</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-2019-1003009, 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 2.11), 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-295: Improper Certificate Validation, where the product does not validate, or incorrectly validates, a certificate. 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

An improper certificate validation vulnerability exists in Jenkins Active Directory Plugin 2.10 and earlier in src/main/java/hudson/plugins/active_directory/ActiveDirectoryDomain.java, src/main/java/hudson/plugins/active_directory/ActiveDirectorySecurityRealm.java, src/main/java/hudson/plugins/active_directory/ActiveDirectoryUnixAuthenticationProvider.java that allows attackers to impersonate the Active Directory server Jenkins connects to for authentication if Jenkins is configured to use StartTLS.

CVE-2019-1003009 Affected Active directory Versions

1 component(s)
Fixed Versions:
2.11
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:active-directory
maven/org.jenkins-ci.plugins/active-directory
Maven
< 2.11
2.11

References

NVD — CVE-2019-1003009 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1003009
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/active-directory-plugin/commit/520faf5bb1078d75e5fed10b7bf5ac6241fe2fc4
Active directory Source Repository REPOSITORY
https://github.com/jenkinsci/active-directory-plugin
Active directory Security Information SECURITY
https://jenkins.io/security/advisory/2019-01-28/#SECURITY-859

Frequently Asked Questions

What is CVE-2019-1003009?
CVE-2019-1003009 is a security vulnerability in Active directory involving Jenkins Active Directory Plugin Improper certificate validation with StartTLS under CWE-295: Improper Certificate Validation.
Which Active directory versions are affected?
Affected versions include releases prior to 2.11 across affected packages: org.jenkins-ci.plugins:active-directory.
What version fixes CVE-2019-1003009?
Upgrading to 2.11 (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 2.11. Upgrade your dependency to 2.11 or later.
What is the CVSS score of CVE-2019-1003009?
CVE-2019-1003009 has a CVSS v3.1 base score of 7.4 (HIGH) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2019-1003009?
CVE-2019-1003009 is classified under CWE-295: Improper Certificate Validation (The product does not validate, or incorrectly validates, a certificate.).
How can I check Maven dependencies for CVE-2019-1003009?
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-2h95-4xw9-m68j",
  "modified" : "2024-01-09T17:59:20Z",
  "published" : "2022-05-13T01:31:35Z",
  "aliases" : [ "CVE-2019-1003009" ],
  "summary" : "Jenkins Active Directory Plugin Improper certificate validation with StartTLS",
  "details" : "An improper certificate validation vulnerability exists in Jenkins Active Directory Plugin 2.10 and earlier in src/main/java/hudson/plugins/active_directory/ActiveDirectoryDomain.java, src/main/java/hudson/plugins/active_directory/ActiveDirectorySecurityRealm.java, src/main/java/hudson/plugins/active_directory/ActiveDirectoryUnixAuthenticationProvider.java that allows attackers to impersonate the Active Directory server Jenkins connects to for authentication if Jenkins is configured to use StartTLS.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:active-directory"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.11"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.10"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-1003009"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/active-directory-plugin/commit/520faf5bb1078d75e5fed10b7bf5ac6241fe2fc4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/active-directory-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2019-01-28/#SECURITY-859"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-295" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-09T17:59:20Z",
    "nvd_published_at" : "2019-02-06T16:29:00Z"
  }
}