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CVE-2023-0871— An XML External Entity injection vulnerability

Quick assessment

Affected
The OpenNMS Group Horizon
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenNMS Horizon是OpenNMS公司的一种开源解决方案，可帮助您可视化和监控本地和远程网络上的所有内容。 OpenNMS Horizon 31.0.8版本至32.0.2之前版本存在安全漏洞。攻击者利用该漏洞强制Horizon发出任意HTTP请求到内部和外部服务。

CVSS 5.4 · Medium EPSS 0.55% · P44
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I. Basic Information for CVE-2023-0871

Vulnerability Information
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Vulnerability Title
An XML External Entity injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenNMS Horizon 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenNMS Horizon是OpenNMS公司的一种开源解决方案，可帮助您可视化和监控本地和远程网络上的所有内容。 OpenNMS Horizon 31.0.8版本至32.0.2之前版本存在安全漏洞。攻击者利用该漏洞强制Horizon发出任意HTTP请求到内部和外部服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
The OpenNMS Group Horizon 31.0.8 ~ 32.0.2 -
The OpenNMS Group Meridian 2023.0.0 ~ 2023.1.6 -

II. Public POCs for CVE-2023-0871

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III. Intelligence Information for CVE-2023-0871

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Patches & Fixes for CVE-2023-0871 (1)

Other References for CVE-2023-0871 (1)

IV. Related Vulnerabilities

Same product: Horizon
Same vendor: The OpenNMS Group
Same weakness: CWE-611

V. Comments for CVE-2023-0871

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