Security readout for executives and security teams
Plain-English summary
This flaw could let a malicious webpage make unwanted changes in an ECOA building automation controller when an authorized user visits it while authenticated. Because the described impact includes full confidentiality, integrity, and availability loss, affected controller access should be treated as a high business risk.
Executive priority
Prioritize review if these controllers manage physical facilities, tenant environments, or safety-adjacent operations. Business urgency is high when administration is reachable from ordinary browsing environments, because compromise could affect system settings and operations.
Technical view
CVE-2021-41295 is a CWE-352 Cross-Site Request Forgery issue in listed ECOA BAS controller products. Sources say forged GET, POST, PUT, and DELETE requests can execute CRUD operations. CVSS 3.1 is 8.8 with network access, low complexity, required user interaction, and high CIA impact.
Likely exposure
Exposure is most likely where ECOA controller web interfaces are reachable from user workstations, management networks, or the internet. The affected list includes ECS Router Controller ECS (FLASH), multiple RiskBuster/RiskTerminator products, Graphic Control Software, and SmartHome II E9246. Version data is unclear in the bundle.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The attack model depends on user interaction: a victim with an authenticated controller session visits a malicious page that submits forged requests to the controller.
Researcher notes
The bundle has enough evidence for CSRF classification and high CVSS severity, but version information is not precise and no fix details are included. Do not infer active exploitation, patched versions, or additional affected ECOA products beyond the cited records.
Mitigation direction
- Check ECOA or TWCERT guidance for patches or official workarounds.
- Restrict controller administration to trusted networks or VPN-only access.
- Avoid browsing untrusted sites from sessions used to administer controllers.
- Review controller accounts, roles, and recent configuration changes.
- Segment BAS controllers from general user browsing environments.
Validation and detection
- Inventory environments for each affected ECOA product named in the advisory.
- Confirm whether controller web interfaces are internet or workstation reachable.
- Check whether vendor guidance identifies fixed versions or mitigations.
- Review logs for unexpected CRUD or configuration activity.
- Verify administrators use separate, controlled sessions for controller access.
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-352: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-2021-41295 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
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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:R/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-5131-c653b-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.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.