CVE-2018-1000198: Blackduck hub XML External Entity Processing Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-8rc4-3jc3-83pm
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CVSS 6.5
CWE-611
Published
Advisory Summary

CVE-2018-1000198 is a MODERATE (CVSS 6.5) xml external entity processing vulnerability vulnerability (CWE-611: Improper Restriction of XML External Entity Reference) affecting Blackduck hub libraries in the Maven ecosystem. The issue involves xml external entity processing vulnerability in jenkins black duck hub plugin. Remediation is available by upgrading affected packages to version 4.0.0.

CVE-2018-1000198 at a Glance

CVE Identifier CVE-2018-1000198
GHSA Identifier GHSA-8rc4-3jc3-83pm
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-611: Improper Restriction of XML External Entity Reference
Affected Product Blackduck hub
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:N/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 None (I:N)
Availability None (A:N)

How to Fix CVE-2018-1000198

To remediate this vulnerability, upgrade all affected Blackduck hub dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

com.blackducksoftware.integration:blackduck-hub fixed: 4.0.0 
<dependency>
    <groupId>com.blackducksoftware.integration</groupId>
    <artifactId>blackduck-hub</artifactId>
    <version>4.0.0</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=com.blackducksoftware.integration

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-1000198, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.blackducksoftware.integration

Analyze the terminal output to locate any version of Blackduck hub in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.blackducksoftware.integration 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 Blackduck hub, 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

A XML external entity processing vulnerability exists in Jenkins Black Duck Hub Plugin 3.1.0 and older in PostBuildScanDescriptor.java that allows attackers with Overall/Read permission to make Jenkins process XML eternal entities in an XML document.

CVE-2018-1000198 Affected Blackduck hub Versions

1 component(s)
Fixed Versions:
4.0.0
Product / Package Ecosystem Affected Versions Fixed Version
com.blackducksoftware.integration:blackduck-hub
maven/com.blackducksoftware.integration/blackduck-hub
Maven
< 4.0.0
4.0.0

References

NVD — CVE-2018-1000198 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1000198
Blackduck hub Security Information SECURITY
https://jenkins.io/security/advisory/2018-05-09/#SECURITY-671

Frequently Asked Questions

What is CVE-2018-1000198?
CVE-2018-1000198 is a security vulnerability in Blackduck hub involving XML External Entity processing vulnerability in Jenkins Black Duck Hub Plugin under CWE-611: Improper Restriction of XML External Entity Reference.
Which Blackduck hub versions are affected?
Affected versions include releases prior to 4.0.0 across affected packages: com.blackducksoftware.integration:blackduck-hub.
What version fixes CVE-2018-1000198?
Upgrading to 4.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is blackduck-hub affected?
Yes, com.blackducksoftware.integration:blackduck-hub is affected in releases prior to 4.0.0. Upgrade your dependency to 4.0.0 or later.
What is the CVSS score of CVE-2018-1000198?
CVE-2018-1000198 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2018-1000198?
CVE-2018-1000198 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-2018-1000198?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.blackducksoftware.integration'. 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-8rc4-3jc3-83pm",
  "modified" : "2024-01-30T22:12:10Z",
  "published" : "2022-05-14T03:13:12Z",
  "aliases" : [ "CVE-2018-1000198" ],
  "summary" : "XML External Entity processing vulnerability in Jenkins Black Duck Hub Plugin",
  "details" : "A XML external entity processing vulnerability exists in Jenkins Black Duck Hub Plugin 3.1.0 and older in PostBuildScanDescriptor.java that allows attackers with Overall/Read permission to make Jenkins process XML eternal entities in an XML document.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.blackducksoftware.integration:blackduck-hub"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.1.0"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1000198"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2018-05-09/#SECURITY-671"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-611" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-30T22:12:01Z",
    "nvd_published_at" : "2018-06-05T21:29:00Z"
  }
}