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CVE Record

CVE-2020-4346: IBM API Connect's V2018.4.1.0 through 2018.4.1.10 management server has an unsecured api which can be explo...

IBM API Connect's V2018.4.1.0 through 2018.4.1.10 management server has an unsecured api which can be exploited by an unauthenticated attacker to obtain sensitive information. IBM X-Force ID: 178322.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM API Connect management servers in versions 2018.4.1.0 through 2018.4.1.10 expose an unsecured API. An unauthenticated network attacker could obtain sensitive information. The documented impact is limited to confidentiality, with no cited integrity or availability impact.

Executive priority

Handle as a moderate-priority remediation for affected IBM API Connect estates. It can expose sensitive information without authentication, but sources indicate limited confidentiality impact and no confirmed active exploitation.

Technical view

CVE-2020-4346 is a network-reachable information disclosure issue in IBM API Connect V2018 management server. CVSS 3.0 is 5.3, with low attack complexity, no privileges, no user interaction, low confidentiality impact, and no integrity or availability impact.

Likely exposure

Exposure is limited to IBM API Connect management server deployments running 2018.4.1.0 through 2018.4.1.10, especially where management interfaces are reachable by untrusted networks.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. The CVSS exploit maturity is unproven, so treat exploitation as possible but not evidenced here.

Researcher notes

The source bundle does not include endpoint details, exploit primitives, or exact fixed versions. Validation should focus on version inventory, management-plane exposure, IBM advisory status, and evidence of unauthenticated probing.

Mitigation direction

  • Identify IBM API Connect management servers and their exact V2018 versions.
  • Review IBM advisory 6208328 for the supported fix or upgrade path.
  • Prioritize upgrading systems within 2018.4.1.0 through 2018.4.1.10.
  • Restrict management server access to trusted administrative networks.
  • Monitor for unauthenticated access attempts against management APIs.

Validation and detection

  • Confirm no production management server runs 2018.4.1.0 through 2018.4.1.10.
  • Verify IBM-recommended remediation is applied and documented.
  • Check network controls limiting access to management interfaces.
  • Review logs for unusual unauthenticated requests to management endpoints.
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-2020-4346 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/A:N/AV:N/I:N/S:U/UI:N/AC:L/C:L/PR: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
5.3CVSS 3.0MediumCVSS:3.0/A:N/AV:N/I:N/S:U/UI:N/AC:L/C:L/PR:N/RL:O/RC:C/E:U3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.3Medium
CVSS 3.0 vector shape for CVE-2020-4346Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/A:N/AV:N/I:N/S:U/UI:N/AC:L/C:L/PR: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
IBMAPI Connect2018.4.1.0, 2018.4.1.10Listed
Weakness

CWE details

No CWE listed

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