CVE-2018-11052
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 · uneditedDell EMC ECS versions 3.2.0.0 and 3.2.0.1 contain an authentication bypass vulnerability. A remote unauthenticated attacker could exploit this vulnerability to read and modify S3 objects by supplying specially crafted S3 requests.
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 confidenceDell EMC ECS versions 3.2.0.0 and 3.2.0.1 contain an authentication bypass vulnerability in the S3 API layer. Remote unauthenticated attackers can exploit this by sending specially crafted S3 requests to read and modify stored objects without valid credentials, effectively bypassing the entire authentication mechanism.
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= 3.2.0.0= 3.2.0.1CVSS 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
- 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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Determine the installed Dell EMC ECS versionAccess the ECS administration UI or use the ECS CLI to query the system version. Typical commands include 'ecs-system-version' or checking the About/System Info section in the EMC ECS management interface.Affected if The installed version is exactly 3.2.0.0 or 3.2.0.1.
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Verify S3 API endpoint is exposedConfirm whether the S3 API service is enabled and accessible on your ECS node. Check the ECS network configuration or S3 service status through the management interface.Affected if The S3 API is enabled and externally or internally accessible on an affected version.
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Review S3 access logs for unauthenticated requestsExamine ECS S3 access logs or audit logs for successful object operations that lack valid authentication credentials. Look for unusual GET/PUT/DELETE operations without corresponding authentication entries.Affected if Object operations are logged without valid authentication tokens on an affected version.
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Test S3 API authentication behaviorSend a minimal S3 API request (such as a GET on a known bucket) without including any AWS Signature or authentication headers, using curl or an S3 client configured with invalid credentials.Affected if The request succeeds and returns object data or bucket listings despite having no valid credentials on an affected version.
Your environment is affected if Dell EMC ECS version 3.2.0.0 or 3.2.0.1 is installed AND the S3 API layer is enabled and accessible, allowing unauthenticated S3 operations.
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 Dell EMC ECS to a version beyond 3.2.0.1 (consult vendor advisories for the patched release) and verify S3 access controls function correctly post-upgrade.
- 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-2018-11052 — 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-2018-11052 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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