CVE-2021-41290 : What You Need to Know
Learn about CVE-2021-41290, a critical vulnerability in ECOA BAS controller allowing remote attackers to execute arbitrary code. Find mitigation steps and updates here.
ECOA BAS controller suffers from an arbitrary file write and path traversal vulnerability, potentially allowing unauthenticated attackers to execute arbitrary code on the affected device.
Understanding CVE-2021-41290
What is CVE-2021-41290?
CVE-2021-41290 is a vulnerability in ECOA BAS controller that enables attackers to perform an arbitrary file write and path traversal, leading to the execution of unauthorized code.
The Impact of CVE-2021-41290
The vulnerability has a critical CVSS base score of 9.8, with high impacts on confidentiality, integrity, and availability. Attackers can exploit it remotely without any privileges required.
Technical Details of CVE-2021-41290
Vulnerability Description
Using POST parameters, unauthenticated attackers can manipulate location and content type settings, potentially executing arbitrary code on the targeted device.
Affected Systems and Versions
- ECS Router Controller ECS (FLASH) next of 0
- RiskBuster Terminator E6L45 next of 0
- RiskBuster System RB 3.0.0 next of 0
- RiskBuster System TRANE 1.0 next of 0
- Graphic Control Software next of 0
- SmartHome II E9246 next of 0
- RiskTerminator next of 0
Exploitation Mechanism
Attackers exploit the vulnerability by altering location and content type values in POST requests, triggering arbitrary code execution.
Mitigation and Prevention
Immediate Steps to Take
- Contact ECOA tech support for guidance and assistance.
Long-Term Security Practices
- Implement strict input validation to prevent malicious parameter manipulation.
Patching and Updates
- Apply patches and updates from ECOA to address the vulnerability.