CVE-2018-1000008: Pmd XXE Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-687x-269m-7cv9
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CVSS 8.8
CWE-611
Published
Advisory Summary

CVE-2018-1000008 is a HIGH (CVSS 8.8) xxe vulnerability vulnerability (CWE-611: Improper Restriction of XML External Entity Reference) affecting Pmd libraries in the Maven ecosystem. The issue involves xxe vulnerability in jenkins pmd plugin. Remediation is available by upgrading affected packages to version 3.50.

CVE-2018-1000008 at a Glance

CVE Identifier CVE-2018-1000008
GHSA Identifier GHSA-687x-269m-7cv9
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-611: Improper Restriction of XML External Entity Reference
Affected Product Pmd
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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:H/A:H).

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 High (I:H)
Availability High (A:H)

How to Fix CVE-2018-1000008

To remediate this vulnerability, upgrade all affected Pmd 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.jvnet.hudson.plugins:pmd fixed: 3.50 
<dependency>
    <groupId>org.jvnet.hudson.plugins</groupId>
    <artifactId>pmd</artifactId>
    <version>3.50</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.jvnet.hudson.plugins

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-1000008, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jvnet.hudson.plugins

Analyze the terminal output to locate any version of Pmd in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.50), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jvnet.hudson.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 Pmd, 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 PMD Plugin 3.49 and earlier processes XML external entities in files it parses as part of the build process, allowing attackers with user permissions in Jenkins to extract secrets from the Jenkins master, perform server-side request forgery, or denial-of-service attacks.

CVE-2018-1000008 Affected Pmd Versions

1 component(s)
Fixed Versions:
3.50
Product / Package Ecosystem Affected Versions Fixed Version
org.jvnet.hudson.plugins:pmd
maven/org.jvnet.hudson.plugins/pmd
Maven
< 3.50
3.50

References

NVD — CVE-2018-1000008 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1000008
Pmd Security Information SECURITY
https://jenkins.io/security/advisory/2018-01-22
Pmd Security Information SECURITY
http://www.securityfocus.com/bid/102844

Frequently Asked Questions

What is CVE-2018-1000008?
CVE-2018-1000008 is a security vulnerability in Pmd involving XXE vulnerability in Jenkins PMD Plugin under CWE-611: Improper Restriction of XML External Entity Reference.
Which Pmd versions are affected?
Affected versions include releases prior to 3.50 across affected packages: org.jvnet.hudson.plugins:pmd.
What version fixes CVE-2018-1000008?
Upgrading to 3.50 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pmd affected?
Yes, org.jvnet.hudson.plugins:pmd is affected in releases prior to 3.50. Upgrade your dependency to 3.50 or later.
What is the CVSS score of CVE-2018-1000008?
CVE-2018-1000008 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-1000008?
CVE-2018-1000008 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-2018-1000008?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jvnet.hudson.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-687x-269m-7cv9",
  "modified" : "2024-01-30T22:36:26Z",
  "published" : "2022-05-14T03:46:09Z",
  "aliases" : [ "CVE-2018-1000008" ],
  "summary" : "XXE vulnerability in Jenkins PMD Plugin",
  "details" : "Jenkins PMD Plugin 3.49 and earlier processes XML external entities in files it parses as part of the build process, allowing attackers with user permissions in Jenkins to extract secrets from the Jenkins master, perform server-side request forgery, or denial-of-service attacks.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jvnet.hudson.plugins:pmd"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.50"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.49"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1000008"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2018-01-22"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/102844"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-611" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-30T22:36:26Z",
    "nvd_published_at" : "2018-01-23T14:29:00Z"
  }
}