6.1

CVE-2023-0871: opennms horizon

CVSS: 6.1v3.1MediumModified
AliasesGHSA-2qc8-r663-v864
Published 11-08-2023Last modified 01-10-2024
Open JSON

Vulnerability summary

CVE-2023-0871 is a medium (CVSS 6.1) vulnerability in opennms horizon. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.55%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-08-2023
    PublishedVulnerability first disclosed.
  2. 01-10-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.55%

Chance of exploitation in the next 30 days

Percentile

45%

Versus all other CVEs

30-day change

0.00 pp

From 0.55% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.55%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Opennms2 products
  • horizon≥ 32.0.0, < 32.0.2 | 31.0.8
  • meridian≥ 2020.0.0, < 2020.1.38 | ≥ 2021.0.0, < 2021.1.30 | ≥ 2022.1.0, < 2022.1.9 | ≥ 2023.0.0, < 2023.1.6
The opennms group2 products
  • horizon≥ 31.0.8, < 32.0.2
  • meridian≥ 2023.0.0, < 2023.1.6 | ≥ 2022.0.0, < 2022.1.19 | ≥ 2021.0.0, < 2021.1.30 | ≥ 2020.0.0, < 2020.1.38
Org.opennms.core1 product
  • org.opennms.core.xml≥ 31.0.8, < 32.0.2

3 vendors · 5 products

References

5 links