CVE-2023-0871: XXE injection in /rtc/post/ endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to XML external entity…

PriorityP431medium6.1CVSS 3.1

AVAACLPRNUINSCCLILAN

EPSS

0.49%

38.3th percentile

XXE injection in /rtc/post/ endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to XML external entity (XXE) injection, which can be used for instance to force Horizon to make arbitrary HTTP requests to internal and external services. 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 and Moshe Apelbaum for reporting this issue.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
opennms	horizon	—	—
opennms	horizon	>= 32.0.0 < 32.0.2	32.0.2
opennms	meridian	>= 2020.0.0 < 2020.1.38	2020.1.38
opennms	meridian	>= 2021.0.0 < 2021.1.30	2021.1.30
opennms	meridian	>= 2022.1.0 < 2022.1.9	2022.1.9
opennms	meridian	>= 2023.0.0 < 2023.1.6	2023.1.6
the_opennms_group	horizon	>= 31.0.8 < 32.0.2	32.0.2
the_opennms_group	meridian	>= 2020.0.0 < 2020.1.38	2020.1.38
the_opennms_group	meridian	>= 2021.0.0 < 2021.1.30	2021.1.30
the_opennms_group	meridian	>= 2022.0.0 < 2022.1.19	2022.1.19
the_opennms_group	meridian	>= 2023.0.0 < 2023.1.6	2023.1.6

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