title: Disable BeanShell Interpreter Remote Server Mode
description: A BeanShell interpreter in remote server mode runs in OpenMNS Horizon versions earlier than 32.0.2 and in related Meridian versions which could allow arbitrary remote Java code execution. 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.
affected:
{
defaultStatus: unaffected
platforms: [Windows, MacOS, Linux]
product: Horizon
repo: https://github.com/OpenNMS/opennms
vendor: The OpenNMS Group
versions:
lessThan: 32.0.2, status: affected, version: 29.0.4, versionType: maven
lessThan: 29.0.4, status: unknown, version: 0, versionType: maven
}
{
defaultStatus: unaffected
platforms: [Windows, MacOS, Linux]
product: Meridian
repo: https://github.com/OpenNMS/opennms
vendor: The OpenNMS Group
versions:
lessThanOrEqual: 2020.1.37, status: affected, version: 2020.0.0, versionType: maven
lessThanOrEqual: 2021.1.29, status: affected, version: 2021.0.0, versionType: maven
lessThanOrEqual: 2022.1.18, status: affected, version: 2022.0.0, versionType: maven
lessThanOrEqual: 2023.1.5, status: affected, version: 2023.0.0, versionType: maven
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: ADJACENT_NETWORK
availabilityImpact: LOW
baseScore: 7.1
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
version: 3.1
]
format: CVSS
scenarios: GENERAL. Score based on the assumption that Horizon and Meridian are installed on internally protected networks and not exposed to the Internet, per installation instructions.