CVE-2017-9658 Denial of service in IntelliVue MX40 Patient Worn Monitor
Attackers can trigger wireless blacklisting causing patient monitors to disconnect, requiring manual staff intervention to restore connectivity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-9658?
CVE-2017-9658 is a medium-severity denial of service vulnerability in Philips IntelliVue MX40 Patient Worn Monitor, published on 30 Apr 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Certain 802.11 network management messages have been determined to invoke wireless access point blacklisting security defenses when not required, which can necessitate intervention by hospital staff to reset the device and reestablish a network connection to the Wi-Fi access point. During this state, the Philips IntelliVue MX40 Version B.06.18 can either connect to an alternative access point within signal range for association to a central monitoring station, or it can remain in local monitoring mode until the device is reset by hospital staff. CVSS v3 base score: 6.5, CVSS vector string: AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Philips has released software update, Version B.06.18, to fix the improper cleanup on thrown exception vulnerability, and implement mitigations to reduce the risk associated with the improper handling of exceptional conditions vulnerability. The software update implements messaging and alarming on the MX40 and at the central monitoring station, when the MX40 disconnects from the access point.
Weakness: CWE-755
Which versions are affected by CVE-2017-9658?
It affects 1 product.
Products include Philips Intellivue Mx40 Firmware.
How do I fix CVE-2017-9658?
No fix has been published for CVE-2017-9658 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-9658 being exploited?
There is no known exploitation of CVE-2017-9658 in the wild and no public exploit code.
Other vulnerabilities in Philips IntelliVue MX40 Patient Worn Monitor
Sources
Also known as GHSA-ccgj-ph26-hf87.