CVE-2018-1250
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 Unity and UnityVSA versions prior to 4.3.1.1525703027 contains an Authorization Bypass vulnerability. A remote authenticated user could potentially exploit this vulnerability to read files in NAS server by directly interacting with certain APIs of Unity OE, bypassing Role-Based Authorization control implemented only in Unisphere GUI.
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 Unity and UnityVSA prior to version 4.3.1.1525703027 contains an authorization bypass where the Unisphere GUI enforces Role-Based Access Control (RBAC) but certain backend APIs do not. An authenticated remote attacker can bypass the GUI's authorization checks by directly interacting with these APIs to read arbitrary files from NAS servers.
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< 4.3.1.1525703027< 4.3.1.1525703027CVSS 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
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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 the Dell EMC Unity product typeDetermine if the system is a Dell EMC Unity storage array or a UnityVSA virtual appliance. This can be done via the Unisphere interface under Settings > System > About, or by checking the system model/name via the CLI command 'uemcli -sys show'Affected if Product is Dell EMC Unity or UnityVSA and version is less than 4.3.1.1525703027
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Check the installed firmware versionIn Unisphere, navigate to Settings > System > Updates > Firmware Inventory, or use the CLI command 'uemcli -sys show' to retrieve the current firmware version stringAffected if The displayed version is earlier than 4.3.1.1525703027
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Verify the specific build numberConfirm the full version build number matches the affected range. The vulnerable version format is 4.3.1.1525703027 (or earlier). Check the build/version string displayed in Unisphere under the System Health or About sectionAffected if Build number is less than 1525703027 for the 4.3.1 release train, or the version is an earlier release train entirely
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Confirm API access to backend endpoints is possibleFrom a network perspective, verify that the Unisphere HTTPS management port (typically 443) is accessible. The vulnerability allows bypass via direct API calls to backend endpoints that do not enforce RBAC. If the management interface is exposed to network segments with untrusted users, the condition is more criticalAffected if Management API is accessible from any network segment beyond the trusted admin network, increasing exploitability
The environment is affected if the installed Dell EMC Unity or UnityVSA firmware version is earlier than 4.3.1.1525703027, and the Unisphere management interface is network-accessible to authenticated users or attackers who could obtain valid credentials.
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 data4.3.1.1525703027
Update Dell EMC Unity or UnityVSA to version 4.3.1.1525703027 or later, which implements proper API-level authorization controls consistent with the GUI.
- Consultation6.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-1250 — 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-2018-1250 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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