CVE-2020-2182: Credentials binding Improper Masking Of Some Secrets Vulnerability

LOW
Advisory Identifier: GHSA-7ff8-qfwx-8gx5
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CVSS 3.1
CWE-522
Published
Advisory Summary

CVE-2020-2182 is a LOW (CVSS 3.1) improper masking of some secrets vulnerability (CWE-522: Insufficiently Protected Credentials) affecting Credentials binding libraries in the Maven ecosystem. The issue involves improper masking of some secrets in jenkins credentials binding plugin. Remediation is available by upgrading affected packages to version 1.23.

CVE-2020-2182 at a Glance

CVE Identifier CVE-2020-2182
GHSA Identifier GHSA-7ff8-qfwx-8gx5
Severity LOW
CVSS v3.1 Base Score 3.1
CWE Classification CWE-522: Insufficiently Protected Credentials
Affected Product Credentials binding
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.1

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

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
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-2020-2182

To remediate this vulnerability, upgrade all affected Credentials binding 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:credentials-binding fixed: 1.23 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>credentials-binding</artifactId>
    <version>1.23</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-2020-2182, 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 Credentials binding in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.23), 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 Credentials binding, 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

Credentials Binding Plugin allows specifying passwords and other secrets as environment variables, and will hide them from console output in builds. As a side effect of the fix for [SECURITY-698](https://www.jenkins.io/security/advisory/2018-02-05/#credentials-binding), `$` characters in secrets are escaped to `$$`. This will then be expanded to $ again once the secret is passed to (post) build steps. Credentials Binding Plugin 1.22 and earlier does not mask the escaped form of the secret (containing `$$`). This occurs for example in the \"Execute Maven top-level targets\" build step included in Jenkins.\n\nCredentials Binding Plugin 1.23 now masks secrets both in their original form and with escaped `$` characters, so they will be masked even if printed before value expansion.

CVE-2020-2182 Affected Credentials binding Versions

1 component(s)
Fixed Versions:
1.23
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:credentials-binding
maven/org.jenkins-ci.plugins/credentials-binding
Maven
< 1.23
1.23

References

NVD — CVE-2020-2182 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2182
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/credentials-binding-plugin/commit/77681e0d184b0ccafa2a27da3b3bdbba95b4fe8f
Credentials binding Source Repository REPOSITORY
https://github.com/jenkinsci/credentials-binding-plugin
Credentials binding Security Information SECURITY
https://jenkins.io/security/advisory/2020-05-06/#SECURITY-1835
Credentials binding Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/05/06/3

Frequently Asked Questions

What is CVE-2020-2182?
CVE-2020-2182 is a security vulnerability in Credentials binding involving Improper masking of some secrets in Jenkins Credentials Binding Plugin under CWE-522: Insufficiently Protected Credentials.
Which Credentials binding versions are affected?
Affected versions include releases prior to 1.23 across affected packages: org.jenkins-ci.plugins:credentials-binding.
What version fixes CVE-2020-2182?
Upgrading to 1.23 (or the latest patched release for your respective branch) resolves the vulnerability.
Is credentials-binding affected?
Yes, org.jenkins-ci.plugins:credentials-binding is affected in releases prior to 1.23. Upgrade your dependency to 1.23 or later.
What is the CVSS score of CVE-2020-2182?
CVE-2020-2182 has a CVSS v3.1 base score of 3.1 (LOW) with vector string CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2020-2182?
CVE-2020-2182 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-2020-2182?
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-7ff8-qfwx-8gx5",
  "modified" : "2022-12-16T22:25:34Z",
  "published" : "2022-05-24T17:17:14Z",
  "aliases" : [ "CVE-2020-2182" ],
  "summary" : "Improper masking of some secrets in Jenkins Credentials Binding Plugin",
  "details" : "Credentials Binding Plugin allows specifying passwords and other secrets as environment variables, and will hide them from console output in builds. As a side effect of the fix for [SECURITY-698](https://www.jenkins.io/security/advisory/2018-02-05/#credentials-binding), `$` characters in secrets are escaped to `$$`. This will then be expanded to $ again once the secret is passed to (post) build steps.\n\nCredentials Binding Plugin 1.22 and earlier does not mask the escaped form of the secret (containing `$$`). This occurs for example in the \\\"Execute Maven top-level targets\\\" build step included in Jenkins.\\n\\nCredentials Binding Plugin 1.23 now masks secrets both in their original form and with escaped `$` characters, so they will be masked even if printed before value expansion.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:credentials-binding"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.23"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.22"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2182"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/credentials-binding-plugin/commit/77681e0d184b0ccafa2a27da3b3bdbba95b4fe8f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/credentials-binding-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2020-05-06/#SECURITY-1835"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/05/06/3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-522" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-24T00:56:55Z",
    "nvd_published_at" : "2020-05-06T13:15:00Z"
  }
}