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CVE Record

CVE-2020-4232: IBM Security Identity Governance and Intelligence 5.2.6 could allow an attacker to enumerate usernames to f...

IBM Security Identity Governance and Intelligence 5.2.6 could allow an attacker to enumerate usernames to find valid login credentials which could be used to attempt further attacks against the system. IBM X-Force ID: 175336.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Security Identity Governance and Intelligence 5.2.6 can reveal whether usernames are valid. That information can help an attacker focus password guessing or other follow-on attacks, but the CVE describes information exposure only, not account takeover by itself.

Executive priority

Treat as a medium-priority identity-security issue. Prioritize remediation if the product is internet-facing or protects privileged business workflows, because username discovery can lower the cost of later credential attacks.

Technical view

CVE-2020-4232 is a network-accessible, unauthenticated username enumeration issue in IBM Security Identity Governance and Intelligence 5.2.6. The CVSS 3.0 score is 5.3, with low confidentiality impact and no integrity or availability impact recorded.

Likely exposure

Exposure is likely limited to organizations running IBM Security Identity Governance and Intelligence 5.2.6, especially where login or identity-management interfaces are reachable over untrusted networks.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. The risk is mainly that valid usernames can support targeted credential attacks against the same system or related identity services.

Researcher notes

Evidence supports username enumeration in IBM Security Identity Governance and Intelligence 5.2.6 only. No CWE is listed in the supplied bundle. Do not infer broader IBM product impact, credential compromise, or exploit availability from this record alone.

Mitigation direction

  • Identify any IBM Security Identity Governance and Intelligence 5.2.6 deployments.
  • Review IBM advisory guidance for the vendor-supported fix or remediation path.
  • Reduce untrusted network access to affected login surfaces where feasible.
  • Monitor authentication logs for enumeration and credential-spray patterns.

Validation and detection

  • Confirm installed IBM Security Identity Governance and Intelligence versions.
  • Map externally and internally reachable authentication endpoints for affected systems.
  • Check whether IBM’s advisory remediation has been applied.
  • Review recent failed-login patterns for username probing indicators.
Prepared
Confidence
high
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.

ATT&CK lookup starting points

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CVE-2020-4232 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/PR:N/UI:N/A:N/AC:L/AV:N/C:L/S:U/I:N/E:U/RL:O/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
5.3CVSS 3.0MediumCVSS:3.0/PR:N/UI:N/A:N/AC:L/AV:N/C:L/S:U/I:N/E:U/RL:O/RC:C3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.3Medium
CVSS 3.0 vector shape for CVE-2020-4232Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/PR:N/UI:N/A:N/AC:L/AV:N/C:L/S:U/I:N/E:U/RL:O/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
IBMSecurity Identity Governance and Intelligence5.2.6Listed
Weakness

CWE details

No CWE listed

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