OpenNMS Horizon RCE via Unsafe Deserialization

2022-05-2417:17:36

Google

osv.dev

opennms

horizon

remote code execution

unsafe deserialization

activemq

java objects

remote execution

authentication

EPSS

0.003

Percentile

71.7%

JSON

An issue was discovered in OpenNMS Horizon before 26.0.1, and Meridian before 2018.1.19 and 2019 before 2019.1.7. The ActiveMQ channel configuration allowed for arbitrary deserialization of Java objects (aka ActiveMQ Minion payload deserialization), leading to remote code execution for any authenticated channel user regardless of its assigned permissions.