CVE-2018-1999006: Jenkins core Exposure Of Sensitive Information To Vulnerability

MODERATE
Advisory Identifier: GHSA-2pp9-r4rv-6p6j
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CVSS 4.3
CWE-200
Published
Advisory Summary

CVE-2018-1999006 is a MODERATE (CVSS 4.3) exposure of sensitive information to vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Jenkins core libraries in the Maven ecosystem. The issue involves exposure of sensitive information to an unauthorized actor in jenkins. Remediation is available by upgrading affected packages to version 2.121.2, 2.132.

CVE-2018-1999006 at a Glance

CVE Identifier CVE-2018-1999006
GHSA Identifier GHSA-2pp9-r4rv-6p6j
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Jenkins core
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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

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

How to Fix CVE-2018-1999006

To remediate this vulnerability, upgrade all affected Jenkins 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.

org.jenkins-ci.main:jenkins-core fixed: 2.121.2 
<dependency>
    <groupId>org.jenkins-ci.main</groupId>
    <artifactId>jenkins-core</artifactId>
    <version>2.121.2</version>
</dependency>
org.jenkins-ci.main:jenkins-core fixed: 2.132 
<dependency>
    <groupId>org.jenkins-ci.main</groupId>
    <artifactId>jenkins-core</artifactId>
    <version>2.132</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.main

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-1999006, inspect your build dependencies using the Maven Dependency Plugin:

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

Analyze the terminal output to locate any version of Jenkins core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.121.2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.main 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-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Jenkins 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

A exposure of sensitive information vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in Plugin.java that allows attackers to determine the date and time when a plugin HPI/JPI file was last extracted, which typically is the date of the most recent installation/upgrade.

CVE-2018-1999006 Affected Jenkins core Versions

2 component(s)
Fixed Versions:
2.121.22.132
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.main:jenkins-core
maven/org.jenkins-ci.main/jenkins-core
Maven
< 2.121.2
2.121.2
org.jenkins-ci.main:jenkins-core
maven/org.jenkins-ci.main/jenkins-core
Maven
≥ 2.122
< 2.132
2.132

References

NVD — CVE-2018-1999006 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1999006
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/jenkins/commit/f46842c7a2c916170ac457a039a2f7f019afd885
Jenkins core Source Repository REPOSITORY
https://github.com/jenkinsci/jenkins
Jenkins core Security Information SECURITY
https://jenkins.io/security/advisory/2018-07-18/#SECURITY-925

Frequently Asked Questions

What is CVE-2018-1999006?
CVE-2018-1999006 is a security vulnerability in Jenkins core involving Exposure of Sensitive Information to an Unauthorized Actor in Jenkins under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Jenkins core versions are affected?
Affected versions include releases prior to 2.121.2, 2.132 across affected packages: org.jenkins-ci.main:jenkins-core.
What version fixes CVE-2018-1999006?
Upgrading to 2.121.2, 2.132 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jenkins-core affected?
Yes, org.jenkins-ci.main:jenkins-core is affected in releases prior to 2.121.2, 2.132. Upgrade your dependency to 2.121.2, 2.132 or later.
What is the CVSS score of CVE-2018-1999006?
CVE-2018-1999006 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2018-1999006?
CVE-2018-1999006 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Maven dependencies for CVE-2018-1999006?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jenkins-ci.main'. 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-2pp9-r4rv-6p6j",
  "modified" : "2022-06-28T23:42:00Z",
  "published" : "2022-05-14T01:05:26Z",
  "aliases" : [ "CVE-2018-1999006" ],
  "summary" : "Exposure of Sensitive Information to an Unauthorized Actor in Jenkins",
  "details" : "A exposure of sensitive information vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in Plugin.java that allows attackers to determine the date and time when a plugin HPI/JPI file was last extracted, which typically is the date of the most recent installation/upgrade.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.main:jenkins-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.121.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.main:jenkins-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.122"
      }, {
        "fixed" : "2.132"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1999006"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/jenkins/commit/f46842c7a2c916170ac457a039a2f7f019afd885"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/jenkins"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2018-07-18/#SECURITY-925"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-28T23:42:00Z",
    "nvd_published_at" : "2018-07-23T19:29:00Z"
  }
}