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             AUSCERT External Security Bulletin Redistribution

       Advisory (ICSA-17-285-01) ProMinent MultiFLEX M10a Controller
                              13 October 2017


        AusCERT Security Bulletin Summary

Product:           ProMinent MultiFLEX M10a Controller
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Increased Privileges       -- Remote/Unauthenticated      
                   Access Privileged Data     -- Existing Account            
                   Cross-site Request Forgery -- Remote with User Interaction
                   Reduced Security           -- Existing Account            
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-14013 CVE-2017-14011 CVE-2017-14009
                   CVE-2017-14007 CVE-2017-14005 

Original Bulletin: 

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Advisory (ICSA-17-285-01)

ProMinent MultiFLEX M10a Controller

Original release date: October 12, 2017

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CVSS v3 8.8

ATTENTION: Remotely exploitable/low skill level to exploit.

Vendor: ProMinent

Equipment: MultiFLEX M10a Controller

Vulnerabilities: Client-Side Enforcement of Server-Side Security, Insufficient
Session Expiration, Cross-Site Request Forgery, Information Exposure, and 
Unverified Password Change


The following versions of MultiFLEX Controller, a water treatment controller,
are affected:

All versions of MultiFLEX M10a Controller web interface.


Successful exploitation of these vulnerabilities could allow an attacker to 
bypass protection mechanisms, assume the identity of authenticated users, and
change the device configuration.


ProMinent has not provided mitigations for these vulnerabilities.

NCCIC/ICS-CERT recommends that users take defensive measures to minimize the 
risk of exploitation of these vulnerabilities. Specifically, users should:

Minimize network exposure for all control system devices and/or systems, and 
ensure that they are not accessible from the Internet.

Locate control system networks and remote devices behind firewalls, and 
isolate them from the business network.

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 a VPN is 
only as secure as the connected devices.

ICS-CERT reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

ICS-CERT 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 in the ICSCERT Technical Information Paper, 
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation 
Strategies, that is available for download from the ICS-CERT web site.

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

No known public exploits specifically target these vulnerabilities.



The log out function in the application removes the users session only on the
client side. This may allow an attacker to bypass protection mechanisms, gain
privileges, or assume the identity of an authenticated user.

CVE-2017-14013 has been assigned to this vulnerability. A CVSS v3 base score 
of 5.6 has been assigned; the CVSS vector string is 


The users session is available for an extended period beyond the last 
activity, allowing an attacker to reuse an old session for authorization.

CVE-2017-14007 has been assigned to this vulnerability. A CVSS v3 base score 
of 5.6 has been assigned; the CVSS vector string is 


The application does not sufficiently verify requests, making it susceptible 
to cross-site request forgery. This may allow an attacker to execute 
unauthorized code, resulting in changes to the configuration of the device.

CVE-2017-14011 has been assigned to this vulnerability. A CVSS v3 base score 
of 8.8 has been assigned; the CVSS vector string is 


When an authenticated user uses the Change Password feature on the 
application, the current password for the user is specified in plaintext. This
may allow an attacker who has been authenticated to gain access to the 

CVE-2017-14009 has been assigned to this vulnerability. A CVSS v3 base score 
of 6.5 has been assigned; the CVSS vector string is 


When setting a new password for a user, the application does not require the 
user to know the original password. An attacker who is authenticated could 
change a users password, enabling future access and possible configuration 

CVE-2017-14005 has been assigned to this vulnerability. A CVSS v3 base score 
of 8.8 has been assigned; the CVSS vector string is 


Maxim Rupp disclosed this vulnerability to ICS-CERT.


Critical Infrastructure Sector: Water and Wastewater Systems

Countries/Areas Deployed: Worldwide

Company Headquarters Location: Ontario, California

Contact Information

For any questions related to this report, please contact ICS-CERT at:

Email: ics-cert@hq.dhs.gov (link sends e-mail)

Toll Free: 1-877-776-7585

International Callers: (208) 526-0900

For industrial control systems security information and incident reporting: 

ICS-CERT continuously strives to improve its products and services. You can 
help by choosing one of the links below to provide feedback about this 

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