CVE-2023-0868 Stealing Cookies using Reflected XSS via graph results

What is CVE-2023-0868?

CVE-2023-0868 is a medium-severity cross-site scripting vulnerability in The OpenNMS Group Horizon, published on 23 Feb 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Reflected cross-site scripting in graph results in multiple versions of OpenNMS Meridian and Horizon could allow an attacker access to steal session cookies. Users should upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4. 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.

Weakness: CWE-79, CWE-20

Which versions are affected by CVE-2023-0868?

2 open source packages ship an affected version, including org.opennms:opennms-webapp. It affects 2 products.

Products include Opennms Horizon, Opennms Meridian.

How do I fix CVE-2023-0868?

Upgrade org.opennms:opennms-webapp to 31.0.4 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-0868 being exploited?

There is no known exploitation of CVE-2023-0868 in the wild and no public exploit code.

Other vulnerabilities in The OpenNMS Group Horizon

• CVE-2021-25931 Cross-Site Request Forgery in OpenNMS Horizon High 8.8
• CVE-2021-3396 OpenNMS Horizon RCE via JEXL2 expression High 8.8
• CVE-2023-0872 ROLE_REST can be used to escalate to ROLE_ADMIN via /rest/users High 8.2
• CVE-2023-0870 Form Can Be Manipulated with Cross-Site Request Forgery (CSRF) High 8.1
• CVE-2020-11886 SQL injection in n/a High 8.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-g57g-rvpg-2f2c.