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AUSCERT External Security Bulletin Redistribution
ESB-2019.2425
Advisory (icsa-19-183-02) Quest KACE Systems Management Appliance
3 July 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: Quest KACE Systems Management Appliance
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-10973
Original Bulletin:
https://www.us-cert.gov/ics/advisories/icsa-19-183-02
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ICS Advisory (ICSA-19-183-02)
Quest KACE Systems Management Appliance
Original release date: July 02, 2019
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 2.7
o ATTENTION : Exploitable remotely/low skill level to exploit
o Vendor : Quest
o Equipment : KACE Systems Management Appliance (SMA)
o Vulnerability : Improper Input Validation
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an administrative
user unintentional access to the underlying operating system of the device.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of KACE Systems Management Appliance are affected:
o KACE SMA: All versions 8.0.x
o KACE SMA: All versions 8.1.x
o KACE SMA: All versions 9.0.x
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER INPUT VALIDATION CWE-20
The vulnerability allows unintentional access to the appliance leveraging
functions of the troubleshooting tools located in the administrator user
interface.
CVE-2019-10973 has been assigned to this vulnerability. A CVSS v3 base score of
2.7 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:H/UI:N/S:U/
C:L/I:N/A:N ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS : Information Technology
o COUNTRIES/AREAS DEPLOYED : Worldwide
o COMPANY HEADQUARTERS LOCATION : Canada
3.4 RESEARCHER
Juan Pablo Lopez Yacubian reported this vulnerability to NCCIC.
4. MITIGATIONS
Quest recommends affected users upgrade to Version 9.1 or newer, which can be
downloaded from the Quest support portal at the following link:
https://support.quest.com/kace-systems-management-appliance/9.1/
download-new-releases.
NCCIC recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Restrict system access to authorized personnel only and follow a least
privilege approach.
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 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.
NCCIC also recommends that users take the following measures to protect
themselves from social engineering attacks:
o Do not click web links or open unsolicited attachments in email messages.
o Refer to Recognizing and Avoiding Email Scams for more information on
avoiding email scams.
o Refer to Avoiding Social Engineering and Phishing Attacks for more
information on social engineering attacks.
No known public exploits specifically target this vulnerability.
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