CVE-2020-25149
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn issue was discovered in Observium Professional, Enterprise & Community 20.8.10631. It is vulnerable to directory traversal and local file inclusion due to the fact that there is an unrestricted possibility of loading any file with an inc.php extension. Inclusion of other files (even though limited to the mentioned extension) can lead to Remote Code Execution. This can occur via /device/device=345/?tab=health&metric=../ because of device/health.inc.php.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceObservium versions prior to the fix allow directory traversal via the 'metric' parameter in the device health tab. By supplying values like '../' an attacker can load arbitrary .inc.php files from outside the intended directory, leading to local file inclusion and potentially remote code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 20.8.10631CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify installed Observium versionCheck the Observium version by inspecting the file /opt/observium/includes/version.inc.php or running the command: grep 'OBSERVIUM_VERSION' /opt/observium/html/includes/version.inc.phpAffected if The installed version is lower than 20.8.10631 (the fixed version)
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Verify device health module is activeCheck if the device health functionality is enabled by looking for health-related configuration in /opt/observium/config.php or by accessing the Devices menu in the Observium web interfaceAffected if The device health tab is accessible and the 'metric' parameter feature is in use
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Confirm metric parameter is accessibleTest accessing a device health page URL pattern such as: /device/device=NAME/tab=health/ - verify the metric parameter is accepted in the requestAffected if The health tab loads and accepts a 'metric' parameter in the URL or form submission
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Check for directory traversal vulnerabilityInspect the PHP source code in /opt/observium/html/pages/device/health.inc.php or related health module files to see if the metric parameter is used in an include/require statement without sanitizationAffected if The code includes files based on the metric parameter without validating it does not contain '../' path traversal sequences
A system is affected if it runs Observium version lower than 20.8.10631 and has the device health module enabled with the metric parameter vulnerable to path traversal.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement strict input validation on the metric parameter to restrict it to allowed values, and use realpath() validation to ensure included files are within expected directories.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
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Free · runs locallyCheck whether your project pulls in CVE-2020-25149 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2020-25149 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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