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CVE Record

CVE-2020-4329: IBM WebSphere Application Server 7.0, 8.0, 8.5, 9.0 and Liberty 17.0.0.3 through 20.0.0.4 could allow a rem...

IBM WebSphere Application Server 7.0, 8.0, 8.5, 9.0 and Liberty 17.0.0.3 through 20.0.0.4 could allow a remote, authenticated attacker to obtain sensitive information, caused by improper parameter checking. This could be exploited to conduct spoofing attacks. IBM X-Force ID: 177841.

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-4329 affects IBM WebSphere Application Server and Liberty. An authenticated remote user could obtain sensitive information because of improper parameter checking, with possible spoofing impact. The available bundle rates it medium severity, not a broad unauthenticated takeover.

Executive priority

Treat this as a scheduled remediation item, not an emergency, unless affected systems expose sensitive data to many authenticated users or external partners. Prioritize internet-facing and unsupported WebSphere deployments first.

Technical view

The issue is in IBM WebSphere Application Server 7.0, 8.0, 8.5, 9.0 and Liberty 17.0.0.3 through 20.0.0.4. CVSS 3.0 is 4.3: network exploitable, low complexity, low privileges required, no user interaction, low confidentiality impact, no integrity or availability impact.

Likely exposure

Exposure is likely where affected WebSphere or Liberty versions remain deployed and reachable by authenticated users, including internal users, partners, or compromised accounts. Systems not running the listed IBM products and versions are not indicated as affected by the bundle.

Exploitation context

The bundle does not identify active exploitation, and KEV status is false. Exploitation requires authentication, which lowers mass internet risk but still matters where many users, weak account controls, or externally reachable applications exist.

Researcher notes

Evidence is limited to the CVE record, IBM advisory reference, and IBM X-Force entry. The bundle does not provide endpoint-level details, proof-of-concept status, or exact fixed versions, so validation should stay inventory- and vendor-guidance based.

Mitigation direction

  • Inventory WebSphere and Liberty deployments against the affected versions listed.
  • Apply IBM's published remediation for the exact product and version.
  • Restrict access to authenticated application and administrative surfaces where feasible.
  • Review account hygiene for users who can reach affected WebSphere services.
  • Monitor IBM guidance for any version-specific fix or workaround details.

Validation and detection

  • Confirm product and version from server inventory or IBM runtime metadata.
  • Verify remediation status against IBM's advisory for CVE-2020-4329.
  • Check whether affected services are reachable from external or partner networks.
  • Review logs for unusual authenticated access around sensitive application functions.
  • Document any accepted risk for unsupported WebSphere versions.
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-2020-4329 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/PR:L/AV:N/C:L/A:N/AC:L/S:U/I:N/UI:N/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
4.3CVSS 3.0MediumCVSS:3.0/PR:L/AV:N/C:L/A:N/AC:L/S:U/I:N/UI:N/RL:O/RC:C/E:U2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2020-4329Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/PR:L/AV:N/C:L/A:N/AC:L/S:U/I:N/UI:N/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
IBMWebSphere Application Server Liberty17.0.0.3, 20.0.0.4Listed
IBMWebSphere Application Server7.0, 8.0, 8.5, 9.0Listed
Weakness

CWE details

No CWE listed

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