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CVE Record

CVE-2021-32077: Primary Source Verification in VerityStream MSOW Solutions before 3.1.1 allows an anonymous internet user t...

Primary Source Verification in VerityStream MSOW Solutions before 3.1.1 allows an anonymous internet user to discover Social Security Number (SSN) values via a brute-force attack on a (sometimes hidden) search field, because the last four SSN digits are part of the supported combination of search selectors. This discloses doctors' and nurses' social security numbers and PII.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2021-32077 is a privacy exposure in VerityStream MSOW Solutions Primary Source Verification before 3.1.1. An anonymous internet user could infer Social Security Number values by repeatedly using a search field that accepted last-four SSN digits as a selector. The source bundle reports disclosure of doctors' and nurses' SSNs and PII.

Executive priority

Treat this as a high-priority privacy and compliance issue if legacy MSOW is exposed. The business concern is not system takeover; it is possible SSN and provider PII disclosure through anonymous search behavior.

Technical view

Affected MSOW Solutions versions before 3.1.1 allowed last-four SSN digits in Primary Source Verification search selectors, including in a sometimes hidden field. This enabled brute-force discovery of SSN values without authentication. No CVSS score, CWE, or detailed vendor remediation text is provided in the bundle.

Likely exposure

Exposure is most likely for healthcare organizations or credentialing services that ran internet-accessible VerityStream MSOW Solutions Primary Source Verification before version 3.1.1. Current exposure cannot be confirmed from the bundle alone.

Exploitation context

The bundle includes a public vulnerability write-up and CVE record, but KEV is false and no supplied source confirms active exploitation. The issue is still sensitive because it involves anonymous access and SSN/PII disclosure.

Researcher notes

Evidence is limited to the CVE description and referenced public pages. The affected range is stated as before 3.1.1, but the bundle does not provide CVSS, CWE mapping, proof of active exploitation, or detailed vendor patch notes.

Mitigation direction

  • Confirm whether MSOW Solutions Primary Source Verification is deployed and internet-accessible.
  • Verify deployed version; prioritize vendor-supported upgrade from versions before 3.1.1.
  • Ask VerityStream for current remediation guidance for any legacy MSOW deployment.
  • Restrict anonymous access to sensitive search selectors where business requirements allow.
  • Review PII handling and retention for provider credentialing search workflows.

Validation and detection

  • Inventory public Primary Source Verification endpoints and ownership.
  • Confirm application version and compare against the before-3.1.1 affected range.
  • Review configuration for SSN-based search selectors, including hidden fields.
  • Check access logs for unusual high-volume search activity against provider lookup pages.
  • Validate that anonymous searches cannot reveal or infer SSN data.
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

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ATT&CK lookup starting points

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CVE-2021-32077 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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