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CVE Record

CVE-2018-1250: Dell EMC Unity and UnityVSA versions prior to 4.3.1.1525703027 contains an Authorization Bypass vulnerability.

Dell 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.

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Dell EMC Unity and UnityVSA systems before version 4.3.1.1525703027 could let a logged-in user read NAS server files they should not be allowed to access. The issue bypasses role-based authorization enforced in the Unisphere GUI by interacting directly with Unity OE APIs.

Executive priority

Treat as a moderate-priority storage security issue. It is not reported as actively exploited in the supplied sources, but affected systems could expose sensitive NAS files to authenticated users beyond their intended role.

Technical view

CVE-2018-1250 is an authorization bypass in Dell EMC Unity Family storage products. A remote authenticated user with low privileges could bypass GUI-only RBAC controls through certain Unity OE APIs and read NAS server files. CVSS 3.0 is 6.5 with high confidentiality impact and no integrity or availability impact stated.

Likely exposure

Exposure is likely limited to Dell EMC Unity and UnityVSA deployments running versions earlier than 4.3.1.1525703027, especially where authenticated users can reach management or API interfaces.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires authentication and network access to the relevant Unity OE APIs, but the confidentiality impact can be significant for NAS data.

Researcher notes

Key nuance: the advisory describes RBAC implemented only in the Unisphere GUI, while certain APIs allowed direct access around that control. Evidence does not name specific API endpoints, exploit tooling, or affected subversions beyond versions prior to 4.3.1.1525703027.

Mitigation direction

  • Upgrade Dell EMC Unity and UnityVSA to version 4.3.1.1525703027 or later.
  • Review Dell EMC advisory DSA-2018-101 for product-specific remediation guidance.
  • Restrict management and API access to trusted administrative networks.
  • Review user roles and remove unnecessary authenticated access.

Validation and detection

  • Inventory Dell EMC Unity and UnityVSA systems and record Unity OE versions.
  • Flag any instance running earlier than 4.3.1.1525703027.
  • Confirm management and API interfaces are not broadly reachable.
  • Review logs for unusual authenticated API access to NAS file resources.
Prepared
Confidence
high
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-1250 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.5Medium
CVSS 3.0 vector shape for CVE-2018-1250Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Dell EMCDell EMC UnityunspecifiedListed
Dell EMCDell EMC UnityVSAunspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.