Security readout for executives and security teams
Plain-English summary
This flaw lets a normal authenticated user bypass authorization in certain ECOA BAS controller products and reach hidden or privileged functions. For building automation environments, that can affect sensitive configuration, control integrity, and availability if the interface is reachable by untrusted users.
Executive priority
Treat as high priority for environments using affected ECOA BAS products, especially where authenticated users are numerous or remote access exists. The business concern is unauthorized control or disruption of building automation functions.
Technical view
CVE-2021-41298 is an improper access control issue described as insecure direct object reference behavior. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, meaning remote exploitation requires low privileges and no user interaction, with high potential impact.
Likely exposure
Exposure is likely limited to organizations running the listed ECOA BAS controller, RiskBuster, RiskTerminator, Graphic Control Software, or SmartHome II products. Version evidence is unclear in the provided source bundle, so asset confirmation is necessary.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The described attacker needs general user privileges and remote access to the application interface, then can bypass authorization boundaries.
Researcher notes
The bundle identifies CWE-284 and IDOR-style authorization bypass, but does not provide patch details, precise affected version ranges, exploit code status, or operational indicators. Avoid assuming broader ECOA product impact beyond the listed products.
Mitigation direction
- Check ECOA and TWCERT guidance for supported fixed versions or mitigations.
- Restrict BAS controller interfaces to trusted management networks only.
- Remove stale general-user accounts and enforce least privilege.
- Monitor for ordinary users invoking privileged or hidden functions.
- Prioritize segmentation where BAS systems connect to enterprise networks.
Validation and detection
- Inventory ECOA products against the affected product list.
- Confirm exact firmware or software versions with the vendor advisory.
- Review access logs for low-privilege access to privileged resources.
- Test authorization controls using approved, non-destructive validation methods.
- Document compensating controls where patch status is unavailable.
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-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2021-41298 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:L/UI:N/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:L/UI:N/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:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-5134-39f74-1.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.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.