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             AUSCERT External Security Bulletin Redistribution

                   GE SNMP/Web Interface Vulnerabilities
                              3 February 2016


        AusCERT Security Bulletin Summary

Product:           GE SNMP/Web Interface adapter
Publisher:         US-CERT
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Access Privileged Data          -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-0862 CVE-2016-0861 

Original Bulletin: 

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Advisory (ICSA-16-033-02)

GE SNMP/Web Interface Vulnerabilities

Original release date: February 02, 2016

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Independent researcher Karn Ganeshen has identified two vulnerabilities in the
GE SNMP/Web Interface adapter. GE has produced a new firmware version to 
mitigate the identified vulnerabilities in later model devices. Earlier model
SNMP/Web Interface adapters may need to be upgraded to accommodate the new 
firmware version to address the identified vulnerabilities.

These vulnerabilities could be exploited remotely.


The following SNMP/Web Interface adapter versions are affected:

SNMP/Web Interface adapter, firmware versions prior to Version 4.8.


Successful exploitation of these vulnerabilities may allow an attacker to 
execute arbitrary system commands and to access other users sensitive account
information potentially impacting the confidentiality, integrity, and 
availability of the system.

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.


GE is a US-based company that maintains offices in several countries around 
the world.

The affected product, SNMP/Web Interface adapter, is a web server designed to
present information about the uninterruptible power supply (UPS). According to
GE, the SNMP/Web Interface is deployed across several sectors including 
Critical Manufacturing and Energy. GE estimates that this product is used 




Device does not perform strict input validation, which may allow an 
authenticated user to execute any system commands on the system.

CVE-2016-0861 [b] has been assigned to this vulnerability. A CVSS v3 base 
score of 8.8 has been assigned; the CVSS vector string is 
(AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). [c]


File contains sensitive account information stored in cleartext.

CVE-2016-0862 [e] has been assigned to this vulnerability. A CVSS v3 base 
score of 6.5 has been assigned; the CVSS vector string is 
(AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). [f]



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.


GE has released a new firmware version for the SNMP/Web Interface adapter, 
Version 4.8, which addresses the reported vulnerabilities. Firmware Version 
4.8 can be applied to SNMP/Web Interface adapters with the following product 
numbers: 1024746, 1024747, 1024748, and 1024921.

GE reports that all other product numbers for SNMP/Web Interface adapters will
need to be upgraded to the latest hardware version with Version 4.8 to address
the identified vulnerabilities. GE recommends that users install the latest 
SNMP/Web Interface adapter with firmware Version 4.8. To obtain additional 
information about solution options, users can contact GE at the following 
email address:

connectivity-ups@ge.com (link sends e-mail)

GEs Product Bulletin is available at the following URL:

http://geindustrial.com/security (link is external)

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

Isolate vulnerable systems from the Internet and untrusted systems.

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.

Implement a runtime policy to prevent the use of any command that does not 
appear in a whitelist of allowable commands.

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.

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-77: Improper Neutralization of Special Elements used in a Command 
('Command Injection'), http://cwe.mitre.org/data/definitions/77.html, web site
last accessed February 2, 2016.

b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-0861, 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 February 2, 2016.

d. CWE-312: Cleartext Storage of Sensitive Information, 
http://cwe.mitre.org/data/definitions/312.html, web site last accessed 
February 2, 2016.

e. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-0862, 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 February 2, 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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