Virtual Computing LabApplication · Apache
CVE-2018-11774
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 · uneditedApache VCL versions 2.1 through 2.5 do not properly validate form input when adding and removing VMs to and from hosts. The form data is then used in SQL statements. This allows for an SQL injection attack. Access to this portion of a VCL system requires admin level rights. Other layers of security seem to protect against malicious attack. However, all VCL systems running versions earlier than 2.5.1 should be upgraded or patched. This vulnerability was found and reported to the Apache VCL project by ADLab of Venustech.
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 confidenceApache VCL versions 2.1-2.5 contain a SQL injection vulnerability in the form handling for adding and removing VMs to/from hosts. Admin-level authentication is required to reach the vulnerable code, which uses form input directly in SQL statements without proper sanitization or parameterized queries.
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
Virtual Computing LabApplication
>= 2.1, <= 2.5CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:H/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 Apache VCL installation versionLocate the version file or check the VCL admin interface for the installed version numberAffected if The installed version is 2.1, 2.2, 2.3, 2.4, or 2.5 (falls within >= 2.1 and <= 2.5)
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Confirm admin authentication is accessibleVerify that the VCL admin interface is reachable and admin-level user accounts existAffected if Admin-level authentication is enabled and accessible to users
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Verify VM host management is availableCheck if the functionality for adding and removing VMs to/from hosts is accessible in the admin panelAffected if The VM host management feature is enabled and accessible to admin users
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Inspect form handling code for SQL injectionExamine the source code files that handle the VM add/remove form submissions, looking for direct SQL statement construction using form inputAffected if Form inputs are used directly in SQL queries without parameterized queries or input sanitization
A system is affected if it runs Apache VCL version 2.1 through 2.5 with admin access enabled and the VM host management feature accessible, where the form handling code uses raw form input in SQL statements.
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 Apache VCL version 2.5.1 or later, which includes proper input validation and parameterized SQL queries. Alternatively, apply the vendor patch to sanitize form inputs before use in SQL statements.
Fix this in Virtual Computing Lab
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-11774 — 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-2018-11774 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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