An improper access control vulnerability may allow privilege escalation.This issue affects:  * ELI 380 Resting Electrocardiograph: Versions 2.6.0 and prior;  * ELI 280/BUR280/MLBUR 280 Resting Electrocardiograph: Versions 2.3.1 and prior;  * ELI 250c/BUR 250c Resting Electrocardiograph: Versions 2.1.2 and prior;  * ELI 150c/BUR 150c/MLBUR 150c Resting Electrocardiograph: Versions 2.2.0 and prior.

The ventilator does not perform proper file integrity checks when adopting firmware updates. This makes it possible for an attacker to force unauthorized changes to the device's configuration settings and/or compromise device functionality by pushing a compromised/illegitimate firmware file. This could disrupt the function of the device and/or cause unauthorized information disclosure.

The debug port on the ventilator's serial interface is enabled by default. This could allow an attacker to send and receive messages over the debug port (which are unencrypted; see 3.2.1) that result in unauthorized disclosure of information and/or have unintended impacts on device settings and performance.

The Clinician Password and Serial Number Clinician Password are hard-coded into the ventilator in plaintext form. This could allow an attacker to obtain the password off the ventilator and use it to gain unauthorized access to the device, with clinician privileges.

The ventilator's microcontroller lacks memory protection. An attacker could connect to the internal JTAG interface and read or write to flash memory using an off-the-shelf debugging tool, which could disrupt the function of the device and/or cause unauthorized information disclosure.

The ventilator and the Service PC lack sufficient audit logging capabilities to allow for detection of malicious activity and subsequent forensic examination. An attacker with access to the ventilator and/or the Service PC could, without detection, make unauthorized changes to ventilator settings that result in unauthorized disclosure of information and/or have unintended impacts on device performance.

The software tools used by service personnel to test & calibrate the ventilator do not support user authentication. An attacker with access to the Service PC where the tools are installed could obtain diagnostic information through the test tool or manipulate the ventilator's settings and embedded software via the calibration tool, without having to authenticate to either tool. This could result in unauthorized disclosure of information and/or have unintended impacts on device settings and performance.

Improper data protection on the ventilator's serial interface could allow an attacker to send and receive messages that result in unauthorized disclosure of information and/or have unintended impacts on device settings and performance.

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.

In Baxter Connex health portal released before 8/30/2024, an improper access control vulnerability has been found that could allow an unauthenticated attacker to gain unauthorized access to Connex portal's database and/or modify content.