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OpenNMS Horizon RCE via Unsafe Deserialization

High severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Aug 21, 2023

Package

maven org.opennms.core:org.opennms.core.daemon (Maven)

Affected versions

< 26.0.1

Patched versions

26.0.1

Description

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.

References

Published by the National Vulnerability Database May 11, 2020
Published to the GitHub Advisory Database May 24, 2022
Reviewed Jul 13, 2023
Last updated Aug 21, 2023

Severity

High
8.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2020-12760

GHSA ID

GHSA-853f-x27w-8r74

Source code

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