Vulnerability Details : 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 (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.
Published 2023-08-11 17:15:09
Updated 2023-08-22 19:16:32
Source The OpenNMS Group
View at NVD,   CVE.org
Vulnerability category: XML external entity (XXE) injection

Products affected by CVE-2023-0871

Exploit prediction scoring system (EPSS) score for CVE-2023-0871

EPSS FAQ
0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-0871

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.1
 MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
2.8
2.7
 NIST
5.4
 MEDIUM CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L
2.3
2.7
 The OpenNMS Group

CWE ids for CVE-2023-0871

  • The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.
    Assigned by:
    • nvd@nist.gov (Primary)
    • security@opennms.com (Secondary)

References for CVE-2023-0871

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