CSRF in Opennms Horizon

CVE-2021-25931

In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to CSRF, due to no CSRF protection at `/opennms/admin/userGroupView/users/updateUser`. This flaw allows assigning `ROLE_ADMIN` security role to a normal user. Using this flaw, an attacker can trick the admin user to assign administrator privileges to a normal user by enticing him to click upon an attacker-controlled website.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.007 (50.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

  • Opennms Horizon
  • Opennms Meridian
  • N/a Opennms — versions opennms-1-0-stable,opennms-1.0.1 through opennms-27.1.0-1,meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1,meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-25931?
CVE-2021-25931 is a high-severity vulnerability in Opennms Horizon, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-05-20.
How severe is CVE-2021-25931?
High severity. CVSS v3 base score is 8.8 out of 10.