CVE-2018-20338
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 · uneditedZoho ManageEngine OpManager 12.3 before build 123239 allows SQL injection in the Alarms section.
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 · moderate confidenceSQL injection vulnerability in Zoho ManageEngine OpManager's Alarms functionality allows attackers to inject malicious SQL queries through unsanitized input, potentially enabling unauthorized database access, data exfiltration, or complete system compromise. The vulnerability affects version 12.3 before build 123239.
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= 12.3CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/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 OpManager installation pathLocate the OpManager installation directory, typically under C:\ManageEngine\OpManager or /opt/OpManager on Linux. Look for the OpManager version file or check the build number in the administration console.Affected if Installation is found with version 12.3 build lower than 123239
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Determine installed build numberAccess the OpManager web UI and navigate to Settings > About, or check the build.info file in the installation directory. The build number appears as a numeric value (e.g., 123200).Affected if Build number is below 123239 on version 12.3
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Verify Alarms module is accessibleCheck if the Alarms functionality is enabled by navigating to the Alarms page in the OpManager web interface (typically /apiclient/ember/index.html#!/alarms or /alarms). Confirm the module responds without authentication errors.Affected if Alarms module is exposed and accessible to the user being tested
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Confirm Alarms API endpoint is reachableProbe the Alarms API endpoint for SQL injection by observing the application's response. Use browser developer tools or curl to send a request to the Alarms endpoint and verify it accepts parameters without strict input validation.Affected if The Alarms endpoint accepts user-supplied input without error-based filtering or validation
A user is affected if OpManager version 12.3 is running with a build number lower than 123239 and the Alarms functionality is accessible, as this combination allows the SQL injection to be exploited.
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 dataUpgrade to ManageEngine OpManager build 123239 or later. If immediate patching is not possible, implement input validation and web application firewall rules for the Alarms endpoint as a temporary measure.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-20338 — 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-2018-20338 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
- No weaponised exploit code, or anything meant to cause harm
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