CVE-2023-0871 Vulnerability Analysis & Exploit Details

CVE-2023-0871
Vulnerability Scoring

5.4
/10
Significant Risk

Security assessments indicate that CVE-2023-0871 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Adjacent_network
    Attack Vector Under Analysis
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2023-0871 Details

Status: Modified

Last updated: 🕢 21 Nov 2024, 07:38 UTC
Originally published on: 🕔 11 Aug 2023, 17:15 UTC

Time between publication and last update: 467 days

CVSS Release: version 3

CVSS3 Source

security@opennms.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L

CVE-2023-0871 Vulnerability Summary

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.

Assessing the Risk of CVE-2023-0871

Access Complexity Graph

The exploitability of CVE-2023-0871 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2023-0871

CVE-2023-0871 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2023-0871, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2023-0871, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2023-0871 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: None
    CVE-2023-0871 poses no threat to data integrity.
  • Availability: Low
    CVE-2023-0871 may slightly degrade system performance without fully affecting service availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.054% (probability of exploit)

EPSS Percentile: 25.97% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 74.03% of others.

CVE-2023-0871 References

External References

CWE Common Weakness Enumeration

CWE-611

CAPEC Common Attack Pattern Enumeration and Classification

  • Data Serialization External Entities Blowup CAPEC-221 This attack takes advantage of the entity replacement property of certain data serialization languages (e.g., XML, YAML, etc.) where the value of the replacement is a URI. A well-crafted file could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.

Vulnerable Configurations

  • cpe:2.3:a:opennms:horizon:32.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:horizon:32.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:horizon:32.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:horizon:32.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:horizon:31.0.8:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:horizon:31.0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.1-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.1-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.2-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.2-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.3-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.3-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.4:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.4-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.4-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.5:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.5:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.5-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.5-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.6:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.6:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.7:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.7:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.7-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.7-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.8:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.8:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.8-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.8-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.9:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.9:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.9-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.9-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.10:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.10:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.11:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.11:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.12:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.12:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.13:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.13:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.14:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.14:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.15:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.15:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.16:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.16:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.17:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.17:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.18:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.18:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.19:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.19:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.20:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.20:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.21:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.21:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.22:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.22:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.23:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.23:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.24:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.24:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.25:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.25:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.26:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.26:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.27:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.27:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.28:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.28:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.29:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.29:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.30:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.30:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.31:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.31:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.32:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.32:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.33:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.33:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.34:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.34:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.35:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.35:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.36:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.36:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2020.1.37:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2020.1.37:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.0-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.0-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.1-1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.1-1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.4:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.5:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.5:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.6:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.6:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.7:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.7:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.8:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.8:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.9:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.9:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.10:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.10:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.11:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.11:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.12:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.12:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.13:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.13:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.14:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.14:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.15:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.15:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.16:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.16:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.17:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.17:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.18:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.18:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.19:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.19:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.20:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.20:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.21:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.21:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.22:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.22:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.23:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.23:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.24:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.24:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.25:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.25:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.26:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.26:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.27:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.27:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.28:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.28:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2021.1.29:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2021.1.29:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.4:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.5:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.5:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.6:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.6:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.7:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.7:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2022.1.8:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2022.1.8:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2023.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2023.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2023.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2023.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2023.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2023.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2023.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2023.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2023.1.4:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2023.1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:opennms:meridian:2023.1.5:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:meridian:2023.1.5:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2023-0871: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2025-46328 – snowflake-connector-nodejs is a NodeJS driver for Snowflake. Versions starting from 1.10.0 to before 2.0.4, are vulnerable to a Time-of-Check to Ti...
  • CVE-2025-46327 – gosnowflake is the Snowflake Golang driver. Versions starting from 1.7.0 to before 1.13.3, are vulnerable to a Time-of-Check to Time-of-Use (TOCTOU...
  • CVE-2025-46326 – snowflake-connector-net is the Snowflake Connector for .NET. Versions starting from 2.1.2 to before 4.4.1, are vulnerable to a Time-of-Check to Tim...
  • CVE-2025-4039 – A vulnerability was found in PHPGurukul Rail Pass Management System 1.0. It has been rated as critical. Affected by this issue is some unknown func...
  • CVE-2025-4038 – A vulnerability was found in code-projects Train Ticket Reservation System 1.0. It has been declared as critical. Affected by this vulnerability is...