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CVE-2020-4357: IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 could allow a remote attacker to obtain sensitive information wh...

IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 178761.

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This vulnerability can expose sensitive technical details from IBM Spectrum Scale error messages shown in a browser. The disclosure alone is limited, but it can help an attacker plan further attacks against the system.

Executive priority

Treat this as a moderate-priority hygiene issue. It should not displace emergency exploited-vulnerability work, but exposed management interfaces or sensitive environments should be remediated promptly.

Technical view

CVE-2020-4357 affects IBM Spectrum Scale 5.0.0.0 through 5.0.4.4. A remote attacker with low privileges may obtain sensitive information when detailed technical errors are returned in the browser. CVSS 3.0 score is 4.3, with network attack vector and low confidentiality impact.

Likely exposure

Organizations running IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 are potentially exposed, especially where browser-accessible Spectrum Scale interfaces are reachable by authenticated low-privilege users.

Exploitation context

The source bundle does not report active exploitation, and CISA KEV status is false. The issue is information disclosure, useful for reconnaissance or follow-on attacks rather than direct system compromise.

Researcher notes

No CWE is listed in the supplied record. CVSS indicates AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N. The bundle confirms affected versions and impact, but does not include specific patched version details.

Mitigation direction

  • Check IBM advisory guidance for fixed levels or interim fixes.
  • Upgrade affected IBM Spectrum Scale versions according to IBM guidance.
  • Restrict browser-accessible management interfaces to trusted users and networks.
  • Review configuration for vendor-supported suppression of detailed error messages.
  • Monitor logs for repeated error-triggering activity by low-privilege accounts.

Validation and detection

  • Inventory IBM Spectrum Scale deployments and record exact versions.
  • Flag versions 5.0.0.0 through 5.0.4.4 as potentially affected.
  • Confirm whether browser-facing Spectrum Scale components are reachable by low-privilege users.
  • Review application logs for detailed technical errors returned to browsers.
  • Verify remediation status against IBM support documentation.
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-2020-4357 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.0)
Known Exploited
No
Published

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

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
4.3CVSS 3.0MediumCVSS:3.0/A:N/I:N/PR:L/S:U/UI:N/AC:L/C:L/AV:N/RL:O/E:U/RC:C2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2020-4357Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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 Scale5.0.0, 5.0.4.4Listed
Weakness

CWE details

No CWE listed

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