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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0522
            Rockwell Automation Allen-Bradley PowerMonitor 1000
                             20 February 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           PowerMonitor 1000
Publisher:         US-CERT
Operating System:  Windows
Impact/Access:     Cross-site Scripting -- Remote with User Interaction
                   Unauthorised Access  -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-19616 CVE-2019-19615 

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-19-050-04

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Advisory (ICSA-19-050-04)

Rockwell Automation Allen-Bradley PowerMonitor 1000

Original release date: February 19, 2019


1. EXECUTIVE SUMMARY

  o CVSS v3 9.8
  o ATTENTION: Exploitable remotely/low skill level to exploit/public exploits
    are available
  o Vendor: Rockwell Automation
  o Equipment: Allen-Bradley PowerMonitor 1000
  o Vulnerabilities: Cross-site Scripting and Authentication Bypass

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow a remote attacker
to affect the confidentiality, integrity, and availability of the device.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of PowerMonitor 1000, a monitoring platform, are
affected:

  o PowerMonitor 1000, all versions.

3.2 VULNERABILITY OVERVIEW

3.2.1    IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION
('CROSS-SITE SCRIPTING') CWE-79

A remote attacker could inject arbitrary code into a targeted user's web
browser to gain access to the affected device.

CVE-2019-19615 has been assigned to this vulnerability. A CVSS v3 base score of
6.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:C/C:L
/I:L/A:N).

3.2.2    AUTHENTICATION BYPASS USING AN ALTERNATE PATH OR CHANNEL CWE-288

A remote attacker may be able to use a proxy to enable functionality that is
typically available to those with administrative rights for the web
application, allowing the attacker to bypass authentication. Once bypassed, the
attacker could disrupt user settings and device configuration. 

CVE-2019-19616 has been assigned to this vulnerability. A CVSS v3 base score of
9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H
/I:H/A:H).

3.3 BACKGROUND

  o CRITICAL INFRASTRUCTURE SECTORS: Energy
  o COUNTRIES/AREAS DEPLOYED: Worldwide
  o COMPANY HEADQUARTERS LOCATION: United States

3.4 RESEARCHER

Luca Chiou of ACSI reported these vulnerabilities to NCCIC.

4. MITIGATIONS

Rockwell Automation is currently working on mitigations and reports that
CheckPoint Software Technologies has released IPS rules to detect attempts to
exploit CVE-2019-19615.
For more information, Rockwell Automation has released a security notification
that can be found at (login required): https://rockwellautomation.custhelp.com/
app/answers/detail/a_id/1084790

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.

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/.

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