Security readout for executives and security teams
Plain-English summary
IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 used weaker than expected cryptography, creating a risk that an attacker could decrypt highly sensitive information. The CVSS score is 5.9 because confidentiality impact is high but attack complexity is high. Treat it as a targeted data confidentiality risk for environments still running those versions.
Executive priority
Handle as a moderate-priority confidentiality issue. It is not cited as actively exploited in the provided sources, but affected deployments may protect sensitive enterprise data. Prioritize remediation where Spectrum Scale supports regulated, customer, financial, research, or operationally critical information.
Technical view
The issue is an information disclosure weakness in IBM Spectrum Scale cryptographic algorithm strength. The published vector is network reachable, high attack complexity, no privileges, no user interaction, unchanged scope, high confidentiality impact, and no integrity or availability impact. No CWE is listed in the provided sources.
Likely exposure
Exposure is likely limited to organizations running IBM Spectrum Scale 5.0.0.0 through 5.0.4.4. Systems outside that product and version range are not identified as affected in the supplied sources. Internet exposure is not stated, so validate inventory and deployment placement.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The CVSS vector indicates exploitation would require high complexity but no privileges or user interaction. Do not assume exploitation in the wild without additional vendor or threat intelligence evidence.
Researcher notes
Evidence is sparse: the bundle identifies affected versions, IBM X-Force ID 179158, CVSS 5.9, and weak cryptographic algorithms. It does not specify the exact algorithm, protocol surface, patch version, or exploit method. Use IBM’s advisory for authoritative remediation details.
Mitigation direction
- Identify IBM Spectrum Scale deployments and exact versions.
- Prioritize systems handling highly sensitive data.
- Review IBM advisory 6214483 for vendor-approved remediation.
- Apply IBM-recommended updates or mitigations when confirmed.
- Reduce unnecessary network access to affected management or data paths.
Validation and detection
- Confirm whether Spectrum Scale versions fall within 5.0.0.0 through 5.0.4.4.
- Check IBM X-Force ID 179158 against internal vulnerability records.
- Verify remediation status against IBM support guidance.
- Document compensating controls for systems awaiting vendor remediation.
- Retest confidentiality exposure after approved fixes or configuration changes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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.
CVE-2020-4379 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/C:H/AC:H/UI:N/S:U/PR:N/I:N/A:N/E:U/RC:C/RL:O
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.0/AV:N/C:H/AC:H/UI:N/S:U/PR:N/I:N/A:N/E:U/RC:C/RL:O2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.9MediumVector: CVSS:3.0/AV:N/C:H/AC:H/UI:N/S:U/PR:N/I:N/A:N/E:U/RC:C/RL:O
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/6214483CVE reference · x_refsource_CONFIRM
- ibm-spectrum-cve20204379-info-disc (179158)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.