Security readout for executives and security teams
Plain-English summary
FLYGO’s check-in record page may let a signed-in ordinary user view another employee’s attendance records by changing identifiers such as employee ID and date. The known impact is confidentiality exposure, not system takeover or data alteration. Affected versions and vendor fix details are not specified in the provided sources.
Executive priority
Prioritize confirmation and containment for organizations using FLYGO to manage employee attendance. The issue is not rated critical, but it can expose sensitive workforce records and may create privacy, HR, or compliance concerns.
Technical view
CVE-2021-37213 is an authenticated IDOR in Larvata Digital Technology Co. Ltd. FLYGO. The CVSS 3.1 score is 4.3: network-accessible, low complexity, low privileges required, no user interaction, unchanged scope, low confidentiality impact, no integrity or availability impact.
Likely exposure
Exposure is limited to organizations running FLYGO with the affected check-in record functionality. A valid general user account is required. Because versions are unspecified, asset owners should treat any deployed FLYGO instance as potentially needing vendor confirmation.
Exploitation context
The source bundle does not show active exploitation, and KEV is false. The vulnerability is still operationally relevant because a low-privileged authenticated user could access another employee’s check-in records if authorization is missing.
Researcher notes
The public description identifies an IDOR-style access-control failure involving employee ID and date parameters. CWE-706 is listed. Evidence is sparse: affected versions, endpoint names, exploit status, and patch details are not provided in the source bundle.
Mitigation direction
- Check Larvata or TWCERT guidance for confirmed fixed versions or configuration changes.
- Restrict FLYGO access to trusted networks or managed devices where feasible.
- Review server-side authorization for employee check-in record access.
- Limit ordinary user access until vendor remediation status is confirmed.
- Monitor for unusual cross-employee check-in record access patterns.
Validation and detection
- Inventory FLYGO deployments and identify whether check-in records are enabled.
- Confirm deployed version and patch status with the vendor or official advisory.
- Review access-control tests for object-level employee record authorization.
- Inspect application logs for ordinary users accessing unrelated employee records.
- Document compensating controls if no vendor fix is available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-706: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-37213 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-4990-0c75d-1.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Incorrectly-Resolved Name or Reference
Use of Incorrectly-Resolved Name or Reference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.