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             AUSCERT External Security Bulletin Redistribution

                      Moxa MiiNePort Vulnerabilities
                                25 May 2016


        AusCERT Security Bulletin Summary

Product:           Moxa MiiNePort
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Access Privileged Data     -- Remote/Unauthenticated      
                   Cross-site Request Forgery -- Remote with User Interaction
                   Unauthorised Access        -- Remote/Unauthenticated      
Resolution:        Mitigation
CVE Names:         CVE-2016-2295 CVE-2016-2286 CVE-2016-2285

Original Bulletin: 

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Advisory (ICSA-16-145-01)

Moxa MiiNePort Vulnerabilities

Original release date: May 24, 2016

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Independent researcher Karn Ganeshen has identified weak credential 
management, sensitive information not protected, and cross-site request 
forgery vulnerabilities in Moxas MiiNePort serial device server module series.
Moxa will produce a beta patch firmware in late May 2016 to mitigate these 

These vulnerabilities could be exploited remotely.


The following MiiNePort versions are affected:

    	MiiNePort_E1_7080 Firmware Version 1.1.10 Build 09120714,
	MiiNePort_E1_4641 Firmware Version 1.1.10 Build 09120714,
	MiiNePort_E2_1242 Firmware Version 1.1 Build 10080614,
	MiiNePort_E2_4561 Firmware Version 1.1 Build 10080614, and
	MiiNePort E3 Firmware Version 1.0 Build 11071409.


Successful exploitation of these vulnerabilities allow silent execution of 
unauthorized actions on the device such as password change, configuration 
parameter changes, saving modified configuration, and device reboot.

Impact to individual organizations depends on many factors that are unique to
each organization. NCCIC/ICS-CERT recommends that organizations evaluate the 
impact of these vulnerabilities based on their operational environment, 
architecture, and product implementation.


Moxa is a Taiwan-based company that maintains offices in several countries 
around the world, including the US, the UK, India, Germany, France, China, 
Russia, and Brazil.

The affected product, MiiNePort, is a serial device server module. According 
to Moxa, MiiNePort is deployed across several sectors including Commercial 
Facilities, Critical Manufacturing, Energy, and Transportation Systems. Moxa 
estimates that this product is used primarily in the United States and Europe
with a small percentage in Asia.




Information strings are shown in clear text when viewing device config file.

CVE-2016-2295 [b] has been assigned to this vulnerability. A CVSS v3 base score 
of 7.5 has been assigned; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N). [c]


The web application does not sufficiently verify whether a well-formed, 
consistent request was intentionally provided by the user who submitted the 

CVE-2016-2285 [e] has been assigned to this vulnerability. A CVSS v3 base score 
of 6.1 has been assigned; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N). [f]


By default, no password is set on the device.

CVE-2016-2286 [h] has been assigned to this vulnerability. A CVSS v3 base score 
of 7.5 has been assigned; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N). [i]



These vulnerabilities could be exploited remotely.


No known public exploits specifically target these vulnerabilities.


An attacker with a low skill would be able to exploit these vulnerabilities.


Moxa recommends disabling Ports TCP/80 (HTTP) and TCP/23 (TELNET). Moxa 
indicates that users should ensure that Ports UDP/161 (SNMP), UDP/4800 
(utility), and TCP/4900 (utility) are only accessible by trusted systems and 
that restricting access to Ports UDP/4800 and TCP/4900 will impact remote 
systems administration.

Ensure the passwords have been enabled.

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 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 at: 
http://ics-cert.us-cert.gov/content/recommended-practices. 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.

a. CWE-312: Cleartext Storage of Sensitive Information, 
http://cwe.mitre.org/data/definitions/312.html, web site last accessed May 24,

b. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2295, NIST 
uses this advisory to create the CVE web site report. This web site will be 
active sometime after publication of this advisory.

c. CVSS Calculator, 
web site last accessed May 24, 2016.

d. CWE-352: Cross-Site Request Forgery (CSFR), 
http://cwe.mitre.org/data/definitions/352.html, web site last accessed May 24,

e. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2285, NIST 
uses this advisory to create the CVE web site report. This web site will be 
active sometime after publication of this advisory.

f. CVSS Calculator, 
web site last accessed May 24, 2016.

g. CWE-255: Credentials Management, 
http://cwe.mitre.org/data/definitions/255.html, web site last accessed May 24,

h. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2286, NIST 
uses this advisory to create the CVE web site report. This web site will be 
active sometime after publication of this advisory.

i. CVSS Calculator, 
web site last accessed May 24, 2016.

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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