There is no limit on the number of failed login attempts permitted with the Clinician Password or the Serial Number Clinician Password. An attacker could execute a brute-force attack to gain unauthorized access to the ventilator, and then make changes to device settings that could disrupt the function of the device and/or result in unauthorized information disclosure.
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks.
Common protection mechanisms include:
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator. [REF-45]