CVE-2020-2235: Pipeline maven CSRF Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-c2hg-2jj6-h8vh
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CVSS 7.1
CWE-352
Published
Advisory Summary

CVE-2020-2235 is a HIGH (CVSS 7.1) csrf vulnerability vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Pipeline maven libraries in the Maven ecosystem. The issue involves csrf vulnerability in jenkins pipeline maven integration plugin allow capturing credentials. Remediation is available by upgrading affected packages to version 3.8.3.

CVE-2020-2235 at a Glance

CVE Identifier CVE-2020-2235
GHSA Identifier GHSA-c2hg-2jj6-h8vh
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Pipeline maven
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.1

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:H/I:L/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 High (C:H)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2020-2235

To remediate this vulnerability, upgrade all affected Pipeline maven 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:pipeline-maven fixed: 3.8.3 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>pipeline-maven</artifactId>
    <version>3.8.3</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-2020-2235, 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 Pipeline maven in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.8.3), 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 Pipeline maven, 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

Pipeline Maven Integration Plugin 3.8.2 and earlier does not perform a permission check in a method implementing form validation. This allows users with Overall/Read access to Jenkins to connect to an attacker-specified JDBC URL using attacker-specified credentials IDs obtained through another method, potentially capturing credentials stored in Jenkins. Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. Pipeline Maven Integration Plugin 3.8.3 requires POST requests and Job/Configure permission for the affected form validation method.

CVE-2020-2235 Affected Pipeline maven Versions

1 component(s)
Fixed Versions:
3.8.3
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:pipeline-maven
maven/org.jenkins-ci.plugins/pipeline-maven
Maven
< 3.8.3
3.8.3

References

NVD — CVE-2020-2235 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2235
Pipeline maven Source Repository REPOSITORY
https://github.com/jenkinsci/pipeline-maven-plugin
Pipeline maven Security Information SECURITY
https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1794%20(2)
Pipeline maven Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/08/12/4

Frequently Asked Questions

What is CVE-2020-2235?
CVE-2020-2235 is a security vulnerability in Pipeline maven involving CSRF vulnerability in Jenkins Pipeline Maven Integration Plugin allow capturing credentials under CWE-352: Cross-Site Request Forgery (CSRF).
Which Pipeline maven versions are affected?
Affected versions include releases prior to 3.8.3 across affected packages: org.jenkins-ci.plugins:pipeline-maven.
What version fixes CVE-2020-2235?
Upgrading to 3.8.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pipeline-maven affected?
Yes, org.jenkins-ci.plugins:pipeline-maven is affected in releases prior to 3.8.3. Upgrade your dependency to 3.8.3 or later.
What is the CVSS score of CVE-2020-2235?
CVE-2020-2235 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with CVE-2020-2235?
CVE-2020-2235 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-2020-2235?
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-c2hg-2jj6-h8vh",
  "modified" : "2022-12-20T21:29:22Z",
  "published" : "2022-05-24T17:25:25Z",
  "aliases" : [ "CVE-2020-2235" ],
  "summary" : "CSRF vulnerability in Jenkins Pipeline Maven Integration Plugin allow capturing credentials",
  "details" : "Pipeline Maven Integration Plugin 3.8.2 and earlier does not perform a permission check in a method implementing form validation.\n\nThis allows users with Overall/Read access to Jenkins to connect to an attacker-specified JDBC URL using attacker-specified credentials IDs obtained through another method, potentially capturing credentials stored in Jenkins.\n\nAdditionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.\n\nPipeline Maven Integration Plugin 3.8.3 requires POST requests and Job/Configure permission for the affected form validation method.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jenkins-ci.plugins:pipeline-maven"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.8.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2235"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/pipeline-maven-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1794%20(2)"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/08/12/4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-12-20T21:29:22Z",
    "nvd_published_at" : "2020-08-12T14:15:00Z"
  }
}