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CVE Record

CVE-2018-1946: IBM Security Identity Governance and Intelligence 5.2 through 5.2.4.1 Virtual Appliance supports interactio...

IBM Security Identity Governance and Intelligence 5.2 through 5.2.4.1 Virtual Appliance supports interaction between multiple actors and allows those actors to negotiate which algorithm should be used as a protection mechanism such as encryption or authentication, but it does not select the strongest algorithm that is available to both parties. IBM X-Force ID: 153388.

MediumCVSS 5.9Not 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 Virtual Appliance can negotiate weaker protection algorithms instead of the strongest shared option. For executives, the main concern is potential exposure of sensitive identity governance data, not system takeover. The available sources rate this medium severity, with high confidentiality impact but high attack complexity.

Executive priority

Treat as a planned remediation item unless the appliance is internet-exposed or handles especially sensitive identity data. It is not currently supported here as actively exploited, but confidentiality impact warrants tracking to closure.

Technical view

CVE-2018-1946 affects IBM Security Identity Governance and Intelligence 5.2 through 5.2.4.1 Virtual Appliance. The issue is insecure algorithm negotiation for protection mechanisms such as encryption or authentication. CVSS 3.0 is 5.9: network exploitable, high complexity, no privileges or user interaction, confidentiality high, integrity and availability unaffected.

Likely exposure

Exposure is limited to organizations running IBM Security Identity Governance and Intelligence Virtual Appliance versions 5.2 through 5.2.4.1. The bundle does not identify other IBM products or non-IBM products as affected.

Exploitation context

The source bundle says this CVE is not in CISA KEV and provides no evidence of active exploitation. CVSS indicates network attack surface and no required privileges, but high attack complexity lowers practical urgency.

Researcher notes

The weakness is algorithm selection during negotiated protection mechanisms, not a disclosed payload-specific flaw. Evidence is limited to CVE, IBM advisory, and IBM X-Force references. Exact patch version and exploit details are not present in the provided bundle.

Mitigation direction

  • Identify all IBM SGI Virtual Appliance deployments and versions.
  • Prioritize upgrades or fixes using IBM advisory guidance.
  • Restrict network access to administrative and identity governance services.
  • Review encryption and authentication configuration against IBM guidance.
  • Monitor vendor advisories for exact fixed versions and configuration requirements.

Validation and detection

  • Confirm whether any deployment runs versions 5.2 through 5.2.4.1.
  • Map externally reachable and internal network paths to the appliance.
  • Check IBM advisory applicability for installed build numbers.
  • Verify remediation status after upgrade or configuration change.
  • Document any compensating network restrictions for remaining legacy systems.
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.

ATT&CK lookup starting points

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CVE-2018-1946 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.9 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/A:N/AC:H/AV:N/C:H/I:N/PR:N/S:U/UI:N/E:U/RC:C/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
5.9CVSS 3.0MediumCVSS:3.0/A:N/AC:H/AV:N/C:H/I:N/PR:N/S:U/UI:N/E:U/RC:C/RL:O2.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.9Medium
CVSS 3.0 vector shape for CVE-2018-1946Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/A:N/AC:H/AV:N/C:H/I:N/PR:N/S:U/UI:N/E:U/RC:C/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
IBMSecurity Identity Governance and Intelligence5.2, 5.2.1, 5.2.2, 5.2.2.1, 5.2.3, 5.2.3.1, 5.2.3.2, 5.2.4, 5.2.4.1Listed
Weakness

CWE details

No CWE listed

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