OpenNMS v2 Alarm REST API inverted authorization check lets ROLE_REST users acknowledge alarms as any user and bypass read-only
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| The OpenNMS Group | Meridian | unaffected |
|
|||||||||
| The OpenNMS Group | Horizon | unaffected |
|
No data.
No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Opennms | Horizon |
|
||||||||||||
| Opennms | Meridian |
|
Vendor Solution
Upgrade to Meridian 2024.3.12, 2025.0.9 and Horizon 36.0.3 or newer.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.254% probability within 30 days)
| Link | Providers |
|---|---|
| https://github.com/OpenNMS/opennms/pull/8755 |
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Opennms
Opennms horizon Opennms meridian |
|
| Vendors & Products |
Opennms
Opennms horizon Opennms meridian |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An incorrect authorization check in the v2 Alarm REST API in OpenNMS Meridian and Horizon allows a low-privileged authenticated user (ROLE_REST) to acknowledge, escalate, or clear alarms recorded as an arbitrary username, and, when also assigned ROLE_READONLY, to modify alarm state despite the read-only restriction. A credential check that should restrict these operations is guarded by an inverted condition, so it never executes for a real (non-blank) username. This can potentially allow an attacker to compromise the integrity of alarm state and audit records. The solution is to upgrade to Meridian 2024.3.12, 2025.0.9 and Horizon 36.0.3 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. | |
| Title | OpenNMS v2 Alarm REST API inverted authorization check lets ROLE_REST users acknowledge alarms as any user and bypass read-only | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV3_1
|