Dräger released fixes to handle an improper input validation, information exposure through log files, and improper privilege management vulnerabilities in its Infinity Delta, according to a report with NCCIC.
Successful exploitation of these vulnerabilities, discovered by Marc Ruef and Rocco Gagliardi of scip AG, could cause information disclosure of device logs, denial of service through device reboots of the patient monitors, and privilege escalation.
The following versions of Dräger patient monitoring medical devices suffer from the issues:
• Infinity Delta, all versions
• Delta XL, all versions
• Kappa, all version
• Infinity Explorer C700, all versions
In one vulnerability, a malformed network packet may cause the monitor to reboot. By repeatedly sending the malformed network packet, an attacker may be able to disrupt patient monitoring by causing the monitor to repeatedly reboot until it falls back to default configuration and loses network connectivity.
CVE-2018-19010 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 6.5.
In addition, log files are accessible over an unauthenticated network connection. By accessing the log files, an attacker is able to gain insights about internals of the patient monitor, the location of the monitor, and wired network configuration.
CVE-2018-19014 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 4.3.
Also, via a specific dialog it is possible to break out of the kiosk mode and reach the underlying operating system. By breaking out of the kiosk mode, an attacker is able to take control of the operating system.
CVE-2018-19012 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 8.4.
The product see use mainly in the healthcare and public health sectors. It also sees action on a global basis.
No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely.
Germany-based Dräger released fixes for these vulnerabilities in December. Users can find Delta/Infinity Explorer VF10.1 software releases for affected components via Dräger ServiceConnect.
Dräger further advises:
• Users are advised to review their network segmentation configuration. The Dräger Infinity-Network is supposed to be either logically or physically separate from the hospital LAN.
• Users are advised to review the Windows patch level of their Infinity Explorer. The Infinity Explorer software is verified by Dräger on a monthly basis to be compatible to all latest operating system patches by Microsoft. Users can get the test report via their local sales representative.
Users can direct further questions related to the vulnerabilities to a designated regional marketing manager. For reporting incidents and potential vulnerabilities in Dräger devices, contact the Product Security team directly.
For more information on these vulnerabilities and associated software updates, please see Dräger product security advisory 201802.