CVE-2023-0871: Org.opennms.core.xml OpenNMS Horizon XXE Injection Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-2qc8-r663-v864
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CVSS 8.8
CWE-611
Published
Advisory Summary

CVE-2023-0871 is a HIGH (CVSS 8.8) opennms horizon xxe injection vulnerability vulnerability (CWE-611: Improper Restriction of XML External Entity Reference) affecting Org.opennms.core.xml libraries in the Maven ecosystem. The issue involves opennms horizon xxe injection vulnerability. Remediation is available by upgrading affected packages to version 32.0.2.

CVE-2023-0871 at a Glance

CVE Identifier CVE-2023-0871
GHSA Identifier GHSA-2qc8-r663-v864
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-611: Improper Restriction of XML External Entity Reference
Affected Product Org.opennms.core.xml
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:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L).

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2023-0871

To remediate this vulnerability, upgrade all affected Org.opennms.core.xml 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.opennms.core:org.opennms.core.xml fixed: 32.0.2 
<dependency>
    <groupId>org.opennms.core</groupId>
    <artifactId>org.opennms.core.xml</artifactId>
    <version>32.0.2</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.opennms.core

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-0871, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.opennms.core

Analyze the terminal output to locate any version of Org.opennms.core.xml in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 32.0.2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.opennms.core 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 Org.opennms.core.xml, 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

XXE injection in `/rtc/post/ endpoint` in OpenNMS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to XML external entity (XXE) injection, which can be used for instance to force Horizon to make arbitrary HTTP requests to internal and external services. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

CVE-2023-0871 Affected Org.opennms.core.xml Versions

1 component(s)
Fixed Versions:
32.0.2
Product / Package Ecosystem Affected Versions Fixed Version
org.opennms.core:org.opennms.core.xml
maven/org.opennms.core/org.opennms.core.xml
Maven
≥ 31.0.8
< 32.0.2
32.0.2

References

NVD — CVE-2023-0871 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-0871
Org.opennms.core.xml Source Repository REPOSITORY
https://github.com/OpenNMS/opennms/pull/6355
Security Fix Commit FIX COMMIT
https://github.com/OpenNMS/opennms/commit/5a3b0b62e0c612c9e2aa2c91c847abec71d767d5
docs.opennms.com/horizon/32/releasen... WEB
https://docs.opennms.com/horizon/32/releasenotes/changelog.html
Org.opennms.core.xml Source Repository REPOSITORY
https://github.com/OpenNMS/opennms

Frequently Asked Questions

What is CVE-2023-0871?
CVE-2023-0871 is a security vulnerability in Org.opennms.core.xml involving OpenNMS Horizon XXE Injection Vulnerability under CWE-611: Improper Restriction of XML External Entity Reference.
Which Org.opennms.core.xml versions are affected?
Affected versions include releases prior to 32.0.2 across affected packages: org.opennms.core:org.opennms.core.xml.
What version fixes CVE-2023-0871?
Upgrading to 32.0.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is org.opennms.core.xml affected?
Yes, org.opennms.core:org.opennms.core.xml is affected in releases prior to 32.0.2. Upgrade your dependency to 32.0.2 or later.
What is the CVSS score of CVE-2023-0871?
CVE-2023-0871 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L.
What CWE is associated with CVE-2023-0871?
CVE-2023-0871 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-2023-0871?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.opennms.core'. 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-2qc8-r663-v864",
  "modified" : "2023-08-18T19:22:58Z",
  "published" : "2023-08-11T18:31:49Z",
  "aliases" : [ "CVE-2023-0871" ],
  "summary" : "OpenNMS Horizon XXE Injection Vulnerability",
  "details" : "XXE injection in `/rtc/post/ endpoint` in OpenNMS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to XML external entity (XXE) injection, which can be used for instance to force Horizon to make arbitrary HTTP requests to internal and external services. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.opennms.core:org.opennms.core.xml"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "31.0.8"
      }, {
        "fixed" : "32.0.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-0871"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenNMS/opennms/pull/6355"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenNMS/opennms/commit/5a3b0b62e0c612c9e2aa2c91c847abec71d767d5"
  }, {
    "type" : "WEB",
    "url" : "https://docs.opennms.com/horizon/32/releasenotes/changelog.html"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OpenNMS/opennms"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-611" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-11T23:04:51Z",
    "nvd_published_at" : "2023-08-11T17:15:08Z"
  }
}