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CVE Record

CVE-2020-4348: IBM Spectrum Scale 4.2.0.0 through 4.2.3.21 and 5.0.0.0 through 5.0.4.4 could allow an authenticated GUI us...

IBM Spectrum Scale 4.2.0.0 through 4.2.3.21 and 5.0.0.0 through 5.0.4.4 could allow an authenticated GUI user to perform unauthorized actions due to missing function level access control. IBM X-Force ID: 178414

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-4348 affects IBM Spectrum Scale management GUI. A logged-in GUI user could perform actions they should not be authorized to perform because function-level access control was missing. The main business risk is unauthorized change or administrative activity by a low-privileged authenticated user, not data theft or service outage based on the provided CVSS details.

Executive priority

Treat as a moderate-priority integrity risk for IBM Spectrum Scale environments. Prioritize remediation where the GUI is broadly reachable or where non-admin users have authenticated access.

Technical view

IBM Spectrum Scale versions 4.2.0.0 through 4.2.3.21 and 5.0.0.0 through 5.0.4.4 are affected. The CVSS 3.0 score is 6.5, with network access, low privileges, low complexity, no user interaction, unchanged scope, high integrity impact, and no confidentiality or availability impact reported.

Likely exposure

Exposure is most likely where affected IBM Spectrum Scale GUI versions are reachable by authenticated users. Environments with many GUI users, broad management access, or insufficient role separation have higher practical risk.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation. IBM X-Force tracks the issue as ID 178414. The CVSS metadata indicates official remediation exists, but the bundle does not provide detailed exploit evidence.

Researcher notes

The root issue is missing function-level access control in the GUI. Available evidence identifies unauthorized actions by authenticated users, but does not enumerate specific functions, endpoints, or exploit paths in the provided bundle.

Mitigation direction

  • Review IBM advisory node 6213739 for the official remediation path.
  • Upgrade or patch affected Spectrum Scale versions according to IBM guidance.
  • Restrict GUI access to trusted administrative networks and approved users.
  • Review GUI user roles and remove unnecessary privileges.
  • Monitor management activity for unauthorized configuration or administrative changes.

Validation and detection

  • Inventory IBM Spectrum Scale deployments and record exact GUI versions.
  • Confirm whether versions fall within the affected 4.2 or 5.0 ranges.
  • Verify IBM-recommended fixes or upgrades are applied.
  • Review GUI accounts for least-privilege role assignments.
  • Check administrative logs for unexpected actions by low-privileged users.
Prepared
Confidence
medium
Sources
4

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.

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CVE-2020-4348 mapping review

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

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

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
3Source 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/A:N/I:H/PR:L/C:N/AV:N/S:U/AC:L/UI:N/RC:C/E:U/RL:O2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.5Medium
CVSS 3.0 vector shape for CVE-2020-4348Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMSpectrum Scale4.2.0.0, 5.0.0.0, 4.2.3.21, 5.0.4.4Listed
Weakness

CWE details

No CWE listed

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