CVE-2022-20621: Metrics Access Key Stored Vulnerability

MODERATE
Advisory Identifier: GHSA-gg9m-x3cg-69vh
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CVSS 5.5
CWE-522
Published
Advisory Summary

CVE-2022-20621 is a MODERATE (CVSS 5.5) access key stored vulnerability (CWE-522: Insufficiently Protected Credentials) affecting Metrics libraries in the Maven ecosystem. The issue involves access key stored in plain text by jenkins metrics plugin. Remediation is available by upgrading affected packages to version 4.0.2.8.1, 4.0.2.7.1.

CVE-2022-20621 at a Glance

CVE Identifier CVE-2022-20621
GHSA Identifier GHSA-gg9m-x3cg-69vh
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-522: Insufficiently Protected Credentials
Affected Product Metrics
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

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

How to Fix CVE-2022-20621

To remediate this vulnerability, upgrade all affected Metrics 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:metrics fixed: 4.0.2.8.1 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>metrics</artifactId>
    <version>4.0.2.8.1</version>
</dependency>
org.jenkins-ci.plugins:metrics fixed: 4.0.2.7.1 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>metrics</artifactId>
    <version>4.0.2.7.1</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-2022-20621, 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 Metrics in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.2.8.1), 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-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 Metrics, 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 Metrics Plugin 4.0.2.8 and earlier stores an access key unencrypted in its global configuration file `jenkins.metrics.api.MetricsAccessKey.xml` on the Jenkins controller as part of its configuration. This access key can be viewed by users with access to the Jenkins controller file system. Jenkins Metrics Plugin 4.0.2.8.1 stores access key encrypted once its configuration is saved again. Additionally, the token value is only displayed once when it is generated.

CVE-2022-20621 Affected Metrics Versions

2 component(s)
Fixed Versions:
4.0.2.8.14.0.2.7.1
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:metrics
maven/org.jenkins-ci.plugins/metrics
Maven
≥ 4.0.2.8
< 4.0.2.8.1
All 1 versions
4.0.2.8
4.0.2.8.1
org.jenkins-ci.plugins:metrics
maven/org.jenkins-ci.plugins/metrics
Maven
< 4.0.2.7.1
4.0.2.7.1

References

NVD — CVE-2022-20621 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-20621
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/metrics-plugin/commit/9810480370d4c5e04a2b710934db5461bde0d1b6
Metrics Source Repository REPOSITORY
https://github.com/jenkinsci/metrics-plugin
Metrics Security Information SECURITY
https://www.jenkins.io/security/advisory/2022-01-12/#SECURITY-1624
Metrics Security Information SECURITY
http://www.openwall.com/lists/oss-security/2022/01/12/6

Frequently Asked Questions

What is CVE-2022-20621?
CVE-2022-20621 is a security vulnerability in Metrics involving Access key stored in plain text by Jenkins Metrics Plugin under CWE-522: Insufficiently Protected Credentials.
Which Metrics versions are affected?
Affected versions include releases prior to 4.0.2.8.1, 4.0.2.7.1 across affected packages: org.jenkins-ci.plugins:metrics.
What version fixes CVE-2022-20621?
Upgrading to 4.0.2.8.1, 4.0.2.7.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is metrics affected?
Yes, org.jenkins-ci.plugins:metrics is affected in releases prior to 4.0.2.8.1, 4.0.2.7.1. Upgrade your dependency to 4.0.2.8.1, 4.0.2.7.1 or later.
What is the CVSS score of CVE-2022-20621?
CVE-2022-20621 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2022-20621?
CVE-2022-20621 is classified under CWE-522: Insufficiently Protected Credentials (The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.).
How can I check Maven dependencies for CVE-2022-20621?
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-gg9m-x3cg-69vh",
  "modified" : "2023-10-27T16:17:45Z",
  "published" : "2022-01-13T00:00:57Z",
  "aliases" : [ "CVE-2022-20621" ],
  "summary" : "Access key stored in plain text by Jenkins Metrics Plugin",
  "details" : "Jenkins Metrics Plugin 4.0.2.8 and earlier stores an access key unencrypted in its global configuration file `jenkins.metrics.api.MetricsAccessKey.xml` on the Jenkins controller as part of its configuration.\n\nThis access key can be viewed by users with access to the Jenkins controller file system.\n\nJenkins Metrics Plugin 4.0.2.8.1 stores access key encrypted once its configuration is saved again.\n\nAdditionally, the token value is only displayed once when it is generated.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:metrics"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.2.8"
      }, {
        "fixed" : "4.0.2.8.1"
      } ]
    } ],
    "versions" : [ "4.0.2.8" ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:metrics"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.0.2.7.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-20621"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/metrics-plugin/commit/9810480370d4c5e04a2b710934db5461bde0d1b6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/metrics-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2022-01-12/#SECURITY-1624"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2022/01/12/6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-522" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-05-04T20:59:58Z",
    "nvd_published_at" : "2022-01-12T20:15:00Z"
  }
}