Security readout for executives and security teams
Plain-English summary
Airfield Online may expose MySQL backup data through its /backups/ handler without proper authentication. The reported impact is limited confidentiality exposure, but backup files can contain sensitive operational or customer data. The public sources do not identify specific affected versions or a patch.
Executive priority
Handle as a low-severity data exposure risk. Prioritize remediation where Airfield Online is internet-facing or backup files may contain customer, credential, or operational data. The absence of version and patch details makes configuration review important.
Technical view
CVE-2021-4230 is a CWE-287 improper authentication issue affecting Airfield Online's MySQL backup handler at /backups/. CVSS v3.1 is 3.7 with network attack vector, high attack complexity, no privileges, no user interaction, and low confidentiality impact only.
Likely exposure
Exposure is likely limited to Airfield Online deployments where the /backups/ path or MySQL backup handler is reachable by untrusted users. Version information is listed as n/a, so scope cannot be narrowed from the provided sources.
Exploitation context
The source bundle says this is not in CISA KEV, and no cited source states active exploitation. The issue is remotely reachable but assessed as high attack complexity and low confidentiality impact. Treat exposed backups as sensitive even when the CVSS score is low.
Researcher notes
Evidence is sparse. Public data identifies the vulnerable path and CWE-287 class, but not affected versions, exploit details, or a fixed release. Avoid assuming broader product impact beyond Airfield Online and the /backups/ MySQL backup handler.
Mitigation direction
- Review Airfield Online configuration settings as recommended by the source.
- Restrict public access to the /backups/ path and backup handler.
- Require authentication before any backup data can be accessed.
- Remove unnecessary web-accessible backup files from production systems.
- Check vendor or maintainer guidance for any patch or configuration update.
Validation and detection
- Inventory systems running Airfield Online.
- Confirm whether /backups/ is reachable from untrusted networks.
- Verify authentication is enforced before backup data access.
- Review access logs for unexpected requests to backup paths.
- Confirm no sensitive MySQL backups are publicly exposed.
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
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2021-4230 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
- Low
- CVSS
- 3.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/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:H/PR:N/UI:N/S:U/C:L/I:N/A:N2.21.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.7LowVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://vuldb.com/?id.183172CVE 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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.