Auth bypass in Opennms Horizon
CVE-2023-40315
In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 and related Meridian versions, any user that has the ROLE_FILESYSTEM_EDITOR can easily escalate their privileges to ROLE_ADMIN or any other role. The solution is to upgrade to Meridian 2023.1.5 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 for reporting this issue.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:L.
EPSS exploit prediction
EPSS: 0.029 (86.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Opennms Horizon
- Opennms Meridian
- The Opennms Group Horizon — versions 31.0.8, 0
- The Opennms Group Meridian — versions 2023.0.0, 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/OpenNMS/opennms/pull/6250 (Patch)
- docs.opennms.com/meridian/2023/releasenotes/changelog.html (Release Notes)
Frequently asked questions
- What is CVE-2023-40315?
- CVE-2023-40315 is a medium-severity vulnerability in Opennms Horizon, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2023-08-17.
- How severe is CVE-2023-40315?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-40315 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.