CVE-2012-3240
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 · uneditedThe Walrus service in Eucalyptus 2.0.3 and 3.0.x before 3.0.2 allows remote attackers to gain administrator privileges via a crafted REST request.
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 confidenceThe Walrus storage service in Eucalyptus cloud platform versions 2.0.3 and 3.0.x before 3.0.2 contains an authorization flaw that allows remote attackers to obtain administrator privileges by sending a specially crafted REST request to the service.
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= 2.0.3= 3.0.1CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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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Confirm Eucalyptus installationUse system package manager or check for Eucalyptus directories and binaries (e.g., run 'rpm -qa | grep eucalyptus' or 'dpkg -l | grep eucalyptus' on Linux systems)Affected if Eucalyptus software is not found on the system, this CVE does not apply
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Identify Eucalyptus versionRun version command for Eucalyptus (e.g., 'euca-version' or check installed package version via rpm/dpkg)Affected if Version is 2.0.3 or 3.0.1 specifically (these are the affected versions)
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Determine if Walrus service is enabledCheck Walrus service status via Eucalyptus administration tools or system service manager (e.g., 'service walrus status' or check via Eucalyptus cloud controller interface)Affected if Walrus service is running and enabled; the vulnerability only affects systems where Walrus is active
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Verify Walrus REST API accessibilityInspect network configuration to determine if Walrus API endpoints (typically port 8773) are exposed to networkAffected if Walrus REST API is accessible from network; combined with vulnerable version, this creates exposure to remote exploitation
You are affected if Eucalyptus version is exactly 2.0.3 or 3.0.1 AND the Walrus storage service is enabled and accessible, allowing remote attackers to send specially crafted REST requests to gain administrator privileges.
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 Eucalyptus to version 3.0.2 or later to address this vulnerability. If immediate upgrade is not possible, consider restricting network access to the Walrus service API endpoints.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-3240 — 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-2012-3240 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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