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CVE Record

CVE-2021-39033: IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.0.3.5 and 6.1.0.0 through 6.1.1.0 could allo...

IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.0.3.5 and 6.1.0.0 through 6.1.1.0 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 213963.

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This vulnerability can expose sensitive technical details through browser error messages in affected IBM Sterling B2B Integrator Standard Edition deployments. The disclosed information could help an attacker plan later attacks, but the source data indicates low confidentiality impact and no integrity or availability impact.

Executive priority

Treat as a scheduled remediation item unless the product is internet-facing, partner-facing, or used in sensitive B2B workflows. Prioritize reducing information leakage because it can support later intrusion planning.

Technical view

CVE-2021-39033 affects IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.0.3.5 and 6.1.0.0 through 6.1.1.0. CVSS 3.0 is 4.3: network exploitable, low complexity, low privileges required, no user interaction, confidentiality low, integrity and availability none.

Likely exposure

Exposure is most likely where affected Sterling B2B Integrator browser interfaces are reachable by authenticated low-privileged users or partners. Internet-facing or broadly reachable deployments deserve faster review because leaked technical details may assist follow-on attacks.

Exploitation context

The bundle does not identify active exploitation, and KEV status is false. IBM describes the issue as sensitive information disclosure through detailed technical error messages returned in the browser, potentially useful for further attacks.

Researcher notes

Evidence is limited to CVE metadata and IBM/X-Force references. The CVSS vector requires low privileges and no user interaction. No CWE is listed in the bundle, and no exploit details or active exploitation evidence are provided.

Mitigation direction

  • Review IBM advisory 6573049 for the official fix or supported remediation path.
  • Upgrade affected deployments to an IBM-supported non-vulnerable level where applicable.
  • Limit browser interface access to trusted networks and authorized users.
  • Check IBM guidance before applying temporary configuration workarounds.

Validation and detection

  • Inventory IBM Sterling B2B Integrator Standard Edition deployments and versions.
  • Flag versions 6.0.0.0-6.0.3.5 and 6.1.0.0-6.1.1.0 as affected.
  • Review browser-facing error handling for detailed technical messages.
  • Confirm remediation against IBM advisory and X-Force vulnerability 213963.
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-2021-39033 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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

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

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/UI:N/PR:L/S:U/I:N/A:N/C:L/AC:L/AV:N/E:U/RL:O/RC:C2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2021-39033Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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, 6.1.0.0, 6.1.1.0, 6.0.3.5Listed
Weakness

CWE details

No CWE listed

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