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CVE Record

CVE-2020-4937: IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 6.0.3.2 uses weaker than expected cryptographi...

IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 6.0.3.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 191814.

MediumCVSS 5.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Sterling B2B Integrator Standard Edition used cryptography weaker than expected in versions 5.2.0.0 through 6.0.3.2. The stated risk is disclosure of highly sensitive information through decryption. This is a confidentiality issue, not an integrity or availability issue in the provided CVSS data.

Executive priority

Treat as a planned but important remediation item. Urgency rises for internet-facing or partner-facing systems that process sensitive information, because the stated business impact is possible decryption of highly sensitive data.

Technical view

CVE-2020-4937 affects IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 6.0.3.2. CVSS 3.0 score is 5.9, with network access, no privileges, no user interaction, high attack complexity, and high confidentiality impact. No CWE is listed in the bundle.

Likely exposure

Exposure is limited to organizations running affected IBM Sterling B2B Integrator Standard Edition versions, especially systems processing highly sensitive partner, transaction, or business data.

Exploitation context

The bundle does not show CISA KEV listing or cited active exploitation. CVSS marks exploit maturity unproven and attack complexity high, but network reachability and no required privileges keep this relevant for externally reachable deployments.

Researcher notes

The public bundle does not provide algorithm details, exploit mechanics, or concrete fix levels. Use IBM advisory and X-Force as authoritative sources for remediation specifics, and avoid assuming affected configurations beyond the named product versions.

Mitigation direction

  • Identify all IBM Sterling B2B Integrator Standard Edition deployments and versions.
  • Review IBM advisory 6370795 for fixed levels or interim guidance.
  • Apply IBM-supported updates or fixes for affected versions.
  • Prioritize systems handling highly sensitive data or exposed to untrusted networks.
  • Follow IBM guidance before changing cryptographic configuration or data handling.

Validation and detection

  • Confirm deployed versions are outside 5.2.0.0 through 6.0.3.2 or remediated.
  • Check IBM advisory and X-Force entry for exact affected and fixed levels.
  • Inventory sensitive data flows through affected Sterling B2B Integrator instances.
  • Verify compensating controls around network exposure and access paths.
  • Document remediation status for each identified instance.
Prepared
Confidence
medium
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-2020-4937 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.9 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/C:H/I:N/S:U/UI:N/PR:N/A:N/AC:H/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
5.9CVSS 3.0MediumCVSS:3.0/C:H/I:N/S:U/UI:N/PR:N/A:N/AC:H/AV:N/E:U/RL:O/RC:C2.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.9Medium
CVSS 3.0 vector shape for CVE-2020-4937Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/C:H/I:N/S:U/UI:N/PR:N/A:N/AC:H/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 Integrator5.2.0.0, 6.0.3.2Listed
Weakness

CWE details

No CWE listed

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