ESB-2018.2476 - [Win] Philips IntelliVue Information Center: Denial of service - Existing account 2018-08-22

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2476
    Advisory (ICSMA-18-233-01) Philips IntelliVue Information Center iX
                              22 August 2018

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        AusCERT Security Bulletin Summary
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Product:           Philips IntelliVue Information Center
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-1999-0103  

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSMA-18-233-01

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Advisory (ICSMA-18-233-01)

Philips IntelliVue Information Center iX

Legal Notice

All information products included in http://ics-cert.us-cert.gov are
provided "as is" for informational purposes only. The Department of Homeland
Security (DHS) does not provide any warranties of any kind regarding any
information contained within. DHS does not endorse any commercial product or
service, referenced in this product or otherwise. Further dissemination of
this product is governed by the Traffic Light Protocol (TLP) marking in the
header. For more information about TLP, see http://www.us-cert.gov/tlp/.

1. EXECUTIVE SUMMARY

  o CVSS v3 5.7
  o ATTENTION: Exploitable remotely/low skill level to exploit
  o Vendor: Philips
  o Equipment: Philips IntelliVue Information Center iX
  o Vulnerability: Resource Exhaustion

2. RISK EVALUATION

Successful exploitation of this vulnerability may result in a denial of
service, the operating system will become unresponsive due to the network
attack, which will affect the applications ability to meet the intended use.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Philips IntelliVue Information Center iX, real-time
central monitoring system, are affected:

  o Philips IntelliVue Information Center iX Versions B.02.

3.2 VULNERABILITY OVERVIEW

3.2.1    UNCONTROLLED RESOURCE CONSUMPTION ('RESOURCE EXHAUSTION') CWE-400

An attacker may compromise the device's availability by performing multiple
initial UDP requests.

CVE-1999-0103 has been assigned to this vulnerability. A CVSS v3 base score of
5.7 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:L/UI:N/S:U/
C:N/I:N/A:H).

3.3 BACKGROUND

  o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
  o COUNTRIES/AREAS DEPLOYED: Worldwide
  o COMPANY HEADQUARTERS LOCATION: Netherlands

3.4 RESEARCHER

A user reported this vulnerability to Philips, who then reported it to NCCIC.

4. MITIGATIONS

Philips has identified and put in place mitigations to reduce the risk of
exploitation of this vulnerability. In order for users of affected devices to
mitigate exposure to this vulnerability, Philips recommends following the
device's labeling, including instructions for use and service guide(s), which
provide compensating controls.

Philips will provide the remediation in the form of a patch by the end of
September 2018 for all PIIC iX B.02 users.

Philips' contact information is available at the following location:

http://www.usa.philips.com/healthcare/solutions/customer-service-solutions

The Philips advisory is available at the following URL:

http://www.philips.com/productsecurity

NCCIC recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:

  o Minimize network exposure for all control system devices and/or systems,
    and ensure that they are not accessible from the Internet.
  o Locate control system networks and remote devices behind firewalls, and
    isolate them from the business network.
  o When remote access is required, use secure methods, such as Virtual
    Private Networks (VPNs), recognizing that VPNs may have vulnerabilities
    and should be updated to the most current version available. Also
    recognize that VPN is only as secure as the connected devices.

NCCIC reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.

NCCIC also provides a section for control systems security recommended
practices on the ICS-CERT web page. Several recommended practices are
available for reading and download, including Improving Industrial Control
Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly
available on the ICS-CERT website in the Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies.

Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to NCCIC for
tracking and correlation against other incidents.

No known public exploits specifically target this vulnerability.

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