Vulnerabilities in pkg:maven/org.jenkins-ci.plugins/xcode-plugin

PACKAGE
Advisory Identifier: GHSA-wfxp-4qgw-qp3c
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Advisory Summary

CVE-2021-21656 is a HIGH (CVSS 7.1) xml external entity (xxe) attacks vulnerability (CWE-611: Improper Restriction of XML External Entity Reference) affecting Xcode plugin libraries in the Maven ecosystem. The issue involves xml external entity (xxe) attacks in jenkins xcode integration plugin. Remediation is available by upgrading affected packages to version 2.0.15.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/org.jenkins-ci.plugins/xcode-plugin

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/org.jenkins-ci.plugins/xcode-plugin. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-wfxp-4qgw-qp3c CVE-2021-21656 HIGH XML external entity (XXE) attacks in Jenkins Xcode integration Plugin

CVE-2021-21656 at a Glance

CVE Identifier CVE-2021-21656
GHSA Identifier GHSA-wfxp-4qgw-qp3c
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-611: Improper Restriction of XML External Entity Reference
Affected Product Xcode plugin
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:3.1/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-2021-21656

To remediate this vulnerability, upgrade all affected Xcode plugin 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:xcode-plugin fixed: 2.0.15 
<dependency>
    <groupId>org.jenkins-ci.plugins</groupId>
    <artifactId>xcode-plugin</artifactId>
    <version>2.0.15</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-2021-21656, 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 Xcode plugin in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.15), 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-611: Improper Restriction of XML External Entity Reference, where the product processes an xml document that can contain xml entities with uris that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. In Xcode plugin, 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 Xcode integration Plugin 2.0.14 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

CVE-2021-21656 Affected Xcode plugin Versions

1 component(s)
Fixed Versions:
2.0.15
Product / Package Ecosystem Affected Versions Fixed Version
org.jenkins-ci.plugins:xcode-plugin
maven/org.jenkins-ci.plugins/xcode-plugin
Maven
< 2.0.15
2.0.15

References

NVD — CVE-2021-21656 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21656
Security Fix Commit FIX COMMIT
https://github.com/jenkinsci/xcode-plugin/commit/01335f1f4734e4a7eda69b28e182ecd4c34a1a4b
Xcode plugin Security Information SECURITY
https://www.jenkins.io/security/advisory/2021-05-11/#SECURITY-2335

Frequently Asked Questions

What is CVE-2021-21656?
CVE-2021-21656 is a security vulnerability in Xcode plugin involving XML external entity (XXE) attacks in Jenkins Xcode integration Plugin under CWE-611: Improper Restriction of XML External Entity Reference.
Which Xcode plugin versions are affected?
Affected versions include releases prior to 2.0.15 across affected packages: org.jenkins-ci.plugins:xcode-plugin.
What version fixes CVE-2021-21656?
Upgrading to 2.0.15 (or the latest patched release for your respective branch) resolves the vulnerability.
Is xcode-plugin affected?
Yes, org.jenkins-ci.plugins:xcode-plugin is affected in releases prior to 2.0.15. Upgrade your dependency to 2.0.15 or later.
What is the CVSS score of CVE-2021-21656?
CVE-2021-21656 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with CVE-2021-21656?
CVE-2021-21656 is classified under CWE-611: Improper Restriction of XML External Entity Reference (The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.).
How can I check Maven dependencies for CVE-2021-21656?
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-wfxp-4qgw-qp3c",
  "modified" : "2022-03-18T17:52:43Z",
  "published" : "2022-03-18T17:52:43Z",
  "aliases" : [ "CVE-2021-21656" ],
  "summary" : "XML external entity (XXE) attacks in Jenkins Xcode integration Plugin",
  "details" : "Jenkins Xcode integration Plugin 2.0.14 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/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:xcode-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0.15"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-21656"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jenkinsci/xcode-plugin/commit/01335f1f4734e4a7eda69b28e182ecd4c34a1a4b"
  }, {
    "type" : "WEB",
    "url" : "https://www.jenkins.io/security/advisory/2021-05-11/#SECURITY-2335"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-611" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-19T19:20:58Z",
    "nvd_published_at" : "2021-05-11T15:15:00Z"
  }
}