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CVE Record

CVE-2020-4646: IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5, 6.0.0.0 through 6.0.3.3, and 6.1.0.0...

IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5, 6.0.0.0 through 6.0.3.3, and 6.1.0.0 through 6.1.0.2 could allow an authenticated user to view pages they shoiuld not have access to due to improper authorization control.

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This flaw could let a logged-in Sterling B2B Integrator user see application pages they should not be able to access. The known impact is limited information exposure, not system takeover or service disruption, but it matters where sensitive partner, transfer, or operational data appears in those pages.

Executive priority

Treat as a moderate-priority remediation item for environments using affected Sterling B2B Integrator versions. Prioritize faster where many business users, partners, or shared accounts can log in, because the issue affects confidentiality of application pages.

Technical view

CVE-2020-4646 is an improper authorization issue in IBM Sterling B2B Integrator Standard Edition. An authenticated network user with low privileges could view pages outside their intended authorization. CVSS 3.0 is 4.3: low complexity, no user interaction, low confidentiality impact, and no integrity or availability impact.

Likely exposure

Exposure is limited to IBM Sterling B2B Integrator Standard Edition versions 5.2.0.0 through 5.2.6.5, 6.0.0.0 through 6.0.3.3, and 6.1.0.0 through 6.1.0.2.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. The CVSS vector indicates exploitation requires an authenticated low-privilege user over the network and no user interaction. Evidence of public exploit availability is not included in the bundle.

Researcher notes

No CWE is listed in the bundle, but the description maps to improper authorization control. The impact scope is narrow: authenticated access, low confidentiality impact, unchanged scope, and no integrity or availability impact. Do not assume unauthenticated compromise or code execution from the supplied evidence.

Mitigation direction

  • Identify all Sterling B2B Integrator Standard Edition instances and versions.
  • Review IBM advisory node 6454169 for official fixed levels or mitigations.
  • Upgrade affected deployments according to IBM guidance.
  • Restrict application access to trusted authenticated users while remediation is pending.
  • Review user roles and remove unnecessary access.

Validation and detection

  • Compare deployed versions against the affected ranges listed for CVE-2020-4646.
  • Confirm remediation status against IBM’s advisory and release guidance.
  • Review authorization roles for users with access to sensitive pages.
  • Check application logs for unusual authenticated access to restricted pages.
  • Document any compensating access controls pending upgrade.
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-2020-4646 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/I:N/AV:N/UI:N/S:U/C:L/PR:L/AC:L/A:N/RC:C/E:U/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
4.3CVSS 3.0MediumCVSS:3.0/I:N/AV:N/UI:N/S:U/C:L/PR:L/AC:L/A:N/RC:C/E:U/RL:O2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2020-4646Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/I:N/AV:N/UI:N/S:U/C:L/PR:L/AC:L/A:N/RC:C/E:U/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
IBMSterling B2B Integrator6.0.0.0, 5.2.0.0, 5.2.6.5, 6.1.0.0, 6.0.3.3, 6.1.0.2Listed
Weakness

CWE details

No CWE listed

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