Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The OpenNMS Group | Horizon | 31.0.8 – < 32.0.2 | 32.0.2 |
| The OpenNMS Group | Meridian | 2020.0.0 – ≤ 2020.1.37, 2021.0.0 – ≤ 2021.1.29, 2022.0.0 – ≤ 2022.1.18, 2023.0.0 – ≤ 2023.1.5 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
-
OpenNMS Horizon Authenticated RCE
exploit/linux/http/opennms_horizon_authenticated_rce
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.opennms:opennms-webapp-rest | >= 31.0.8, < 32.0.2 | 32.0.2 | GHSA-w5gq-xrrp-3fxf |