Vulnerability · Published Sep 30, 2021 · Assigned by twcert

CVE-2021-41292ECOA BAS controller - Broken Authentication

Critical 9.8

In plain English

A critical-severity authentication bypass in ECS Router Controller ECS (FLASH) from ECOA. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.2%top 32.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

ECOA BAS controller suffers from an authentication bypass vulnerability. An unauthenticated attacker through cookie poisoning can remotely bypass authentication and disclose sensitive information and circumvent physical access controls in smart homes and buildings and manipulate HVAC.

Affected products (as reported)

VendorProductVersions
ECOA ECS Router Controller ECS (FLASH) see references
ECOA RiskBuster Terminator E6L45 see references
ECOA RiskBuster System RB 3.0.0 see references
ECOA RiskBuster System TRANE 1.0 see references
ECOA Graphic Control Software see references
ECOA SmartHome II E9246 see references
ECOA RiskTerminator see references

Weakness: CWE-288 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References