Security readout for executives and security teams
Plain-English summary
Some ECOA building automation controllers may expose backup data that stores passwords in clear text. A remote unauthenticated attacker could obtain user passwords and privileges, creating risk to facility control systems and account security.
Executive priority
Treat as high priority for facilities or OT environments using ECOA BAS products, especially if remotely accessible. The main business risk is unauthorized access to controller credentials and potential operational impact.
Technical view
CVE-2021-41302 is CWE-311 in ECOA BAS controller products. The CVSS 3.1 score is 7.3 with network attack vector, low complexity, no privileges, and no user interaction. The source states backup exports store sensitive data in clear text and can be remotely queried.
Likely exposure
Exposure is most likely where listed ECOA BAS controller products are reachable from untrusted networks or where backup export functions are accessible without authentication. The provided version data is vague, so asset confirmation is necessary.
Exploitation context
The provided bundle does not show CISA KEV listing or active exploitation evidence. The described condition is still serious because it is unauthenticated, remote, and may reveal passwords and privileges.
Researcher notes
Affected products listed include ECOA ECS Router Controller ECS, RiskBuster variants, Graphic Control Software, SmartHome II E9246, and RiskTerminator. Version information in the bundle is imprecise, and no exploit or patch detail is provided.
Mitigation direction
- Check ECOA or TWCERT guidance for patched firmware or supported workarounds.
- Inventory affected ECOA BAS controller products in operational environments.
- Remove affected controllers from direct internet exposure.
- Restrict access to trusted management networks and administrators.
- Rotate credentials if backup exports may have been exposed.
- Apply vendor-supported updates or compensating controls once confirmed.
Validation and detection
- Confirm whether listed ECOA products are deployed in the environment.
- Determine whether any controller is reachable from untrusted networks.
- Review vendor/TWCERT advisory details for exact affected versions.
- Check whether backup exports contain clear-text sensitive data.
- Review logs for suspicious unauthenticated access to backup export functions.
- Verify credential rotation and network restrictions after remediation.
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-311: 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-41302 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
- High
- CVSS
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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:N/UI:N/S:U/C:L/I:L/A:L3.93.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-5138-d40ae-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.
Missing Encryption of Sensitive Data
Missing Encryption of Sensitive Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.