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CVE Record

CVE-2019-4439: IBM Cloud Private 3.1.0, 3.1.1, and 3.1.2 does not invalidate session after logout which could allow a loca...

IBM Cloud Private 3.1.0, 3.1.1, and 3.1.2 does not invalidate session after logout which could allow a local user to impersonate another user on the system. IBM X-Force ID: 162949.

MediumCVSS 5.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Cloud Private 3.1.0, 3.1.1, and 3.1.2 may leave a session valid after logout. A local user could potentially impersonate another user on the system. This is a medium-severity access-control weakness with confidentiality and availability impact, not a remotely exploitable internet bug based on the supplied CVSS vector.

Executive priority

Prioritize remediation for any still-running IBM Cloud Private 3.1.x environment, especially shared administrative systems. The business urgency is moderate because exploitation requires local access, but successful abuse could undermine user accountability and administrative trust.

Technical view

CVE-2019-4439 is a session invalidation flaw in IBM Cloud Private. The CVSS 3.0 vector indicates local attack vector, low complexity, no privileges, no user interaction, unchanged scope, and low confidentiality, integrity, and availability impact. The source bundle identifies IBM X-Force ID 162949 and lists an official remediation level, but no exact fixed version is provided here.

Likely exposure

Exposure is likely limited to environments running IBM Cloud Private 3.1.0, 3.1.1, or 3.1.2. Risk is highest where multiple people can access the same local system or administrative workstation and where logout is assumed to terminate session access immediately.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. The described attacker is local, and the issue centers on session reuse after logout. Treat this as an access-control and operational hygiene issue, not confirmed mass exploitation.

Researcher notes

The provided evidence identifies the affected product versions and impact, but does not include detailed root cause, proof-of-concept details, or exact fixed release. Do not assume broader IBM Cloud products are affected without vendor confirmation.

Mitigation direction

  • Identify IBM Cloud Private 3.1.0, 3.1.1, and 3.1.2 deployments.
  • Review IBM advisory guidance for the official fix or supported upgrade path.
  • Apply IBM-provided remediation after normal change-control review.
  • Restrict local system access to trusted administrators only.
  • Avoid shared administrative sessions on affected systems until remediated.

Validation and detection

  • Confirm the running IBM Cloud Private version on each deployment.
  • Check whether affected systems match versions 3.1.0, 3.1.1, or 3.1.2.
  • Verify logout invalidates sessions after applying IBM remediation.
  • Review access logs for unusual local account or session activity.
  • Document remediation status for vulnerability management tracking.
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-2019-4439 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/I:L/AV:L/C:L/A:L/AC:L/S:U/PR:N/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/I:L/AV:L/C:L/A:L/AC:L/S:U/PR:N/UI:N/E:U/RC:C/RL:O2.53.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.9Medium
CVSS 3.0 vector shape for CVE-2019-4439Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/I:L/AV:L/C:L/A:L/AC:L/S:U/PR:N/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
IBMCloud Private3.1.0, 3.1.1, 3.1.2Listed
Weakness

CWE details

No CWE listed

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