Home/CVE/The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple pl
CVE

CVE-2023-0872

The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple pl

The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to elevation of privilege. 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. OpenNMS thanks Erik Wynter for reporting this issue.

HIGH · CVSS 8.2 EPSS 0.03475
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-269Improper Privilege Management
▤

Affected Products & Versions

5
opennms horizon>= 31.0.8 and < 32.0.2
opennms meridian>= 2020.0.0 and <= 2020.1.37
opennms meridian>= 2021.0.0 and <= 2021.1.29
opennms meridian>= 2022.0.0 and <= 2022.1.18
opennms meridian>= 2023.0.0 and <= 2023.1.5
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.opennms:opennms-webapp-rest HIGH fixed in 32.0.2
▣

Scoring & Timeline

8.2
HIGH · CVSS v3.1 · security@opennms.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Aug 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://docs.opennms.com/horizon/32/releasenotes/changelog.htmlRelease Notes
https://github.com/OpenNMS/opennms/pull/6354Patch
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