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CVE Record

CVE-2019-4239: IBM MQ Advanced Cloud Pak (IBM Cloud Private 1.0.0 through 3.0.1) stores user credentials in plain in clear...

IBM MQ Advanced Cloud Pak (IBM Cloud Private 1.0.0 through 3.0.1) stores user credentials in plain in clear text which can be read by a local user. IBM X-Force ID: 159465.

MediumCVSS 6.2Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2019-4239 is a credential exposure issue in IBM MQ Advanced Cloud Pak for IBM Cloud Private. A local user could read user credentials stored in clear text. The main business risk is credential compromise inside affected legacy deployments, not remote takeover by itself.

Executive priority

Treat this as a targeted remediation item for legacy IBM MQ cloud deployments. Prioritize if the environment is multi-user, has shared administrative access, or handles sensitive messaging credentials.

Technical view

Affected IBM MQ Advanced Cloud Pak deployments on IBM Cloud Private and IBM Cloud Private on RedHat OpenShift versions 1.0.0 through 3.0.1 store user credentials in clear text readable by a local user. CVSS 3.0 score is 6.2, with local attack vector and high confidentiality impact.

Likely exposure

Exposure is most likely in organizations still running affected IBM MQ Advanced Cloud Pak versions 1.0.0 through 3.0.1 on IBM Cloud Private or IBM Cloud Private on RedHat OpenShift.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. Abuse requires local access, so risk increases where many administrators, operators, support users, or compromised local accounts can access the deployment environment.

Researcher notes

Evidence supports local cleartext credential disclosure with high confidentiality impact and no integrity impact in the CVSS vector. The source bundle does not provide exploit details, affected file paths, or exact fixed versions, so validation should stay tied to IBM advisory guidance.

Mitigation direction

  • Identify affected IBM MQ Advanced Cloud Pak deployments and versions.
  • Review IBM advisory 0886591 for official remediation and fixed-version guidance.
  • Apply IBM-published remediation before rotating exposed credentials.
  • Restrict local user and operator access to affected deployment hosts.
  • Rotate credentials that may have been stored in affected deployments.

Validation and detection

  • Confirm whether deployed versions match 1.0.0 through 3.0.1.
  • Verify both IBM Cloud Private and OpenShift-based deployments are inventoried.
  • Confirm IBM advisory remediation has been applied.
  • Validate credentials are no longer stored in clear text after remediation.
  • Review local access history where logs are available.
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.

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CVE-2019-4239 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.2 (3.0)
Known Exploited
No
Published

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

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
6.2CVSS 3.0MediumCVSS:3.0/PR:N/A:N/S:U/AV:L/I:N/AC:L/UI:N/C:H/RL:O/RC:C/E:U2.53.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.2Medium
CVSS 3.0 vector shape for CVE-2019-4239Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMMQ Advanced Cloud Pak (IBM Cloud Private)1.0.0, 1.1.0, 1.2.0, 1.3.0, 2.0.0, 2.1.0, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 3.0.0, 3.0.1Listed
IBMMQ Advanced Cloud Pak (IBM Cloud Private on RedHat OpenShift)1.0.0, 1.1.0, 1.2.0, 1.3.0, 2.0.0, 2.1.0, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 3.0.0, 3.0.1Listed
Weakness

CWE details

No CWE listed

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