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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.1752
         Schneider Electric Pelco Digital Sentry Video Management
                           System Vulnerability
                               15 July 2016

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

Product:           Schneider Electric Pelco Digital Sentry Video Management System
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Privileged Data          -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-4520  

Original Bulletin: 
   http://ics-cert.us-cert.gov/advisories/ICSA-16-196-01

Comment: This bulletin contains two (2) ICS-CERT security advisories.

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Advisory (ICSA-16-196-01)

Schneider Electric Pelco Digital Sentry Video Management System Vulnerability

Original release date: July 14, 2016

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/.

OVERVIEW

Schneider Electric has identified a hard-coded credential vulnerability in 
Schneider Electrics Pelco Digital Sentry Video Management System. Schneider 
Electric has produced a new firmware version to mitigate this vulnerability.

This vulnerability could be exploited remotely.

AFFECTED PRODUCTS

The following Pelco Digital Sentry Video Management System versions are 
affected:

Pelco Digital Sentry Video Management System, versions prior to Version 7.13

IMPACT

Successful exploitation of this vulnerability may allow an attacker to gain 
access to execute code on the affected 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 this vulnerability based on their operational environment, 
architecture, and product implementation.

BACKGROUND

Schneider Electric is a France-based company that maintains offices in 190 
countries worldwide.

The affected product, Pelco Digital Sentry Video Management System, is a video
recording system. According to Schneider Electric, Pelco Digital Sentry Video
Management System is deployed across several sectors including Commercial 
Facilities. Schneider Electric estimates that these products are used 
worldwide.

VULNERABILITY CHARACTERIZATION

VULNERABILITY OVERVIEW

USE OF HARD-CODED PASSWORD [a]

The affected system contains hard-coded credentials that may allow an attacker
to gain access to confidential information or execute code on the affected 
system.

CVE-2016-4520 [b] has been assigned to this vulnerability. Schneider Electric has
assigned a CVSS v3 base score of 8.6; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H). [c]

VULNERABILITY DETAILS

EXPLOITABILITY

This vulnerability could be exploited remotely.

EXISTENCE OF EXPLOIT

No known public exploits specifically target this vulnerability.

DIFFICULTY

An attacker with a low skill would be able to exploit this vulnerability.

MITIGATION

Schneider Electric has produced new firmware, Version 7.14, for the Pelco 
Digital Sentry Video Management System, which addresses the identified 
vulnerability. The new firmware, Version 7.14, is available on Pelcos web 
site:

https://www.pelco.com/video-management-solutions/digital-sentry-flexible-video-management#tab/documents
(link is external)

Schneider Electric has released a security notification, SEVD-2016-153-01, 
which is available at the following location:

http://www.schneider-electric.com/ww/en/download/document/SEVD-2016-153-01 
(link is external)

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 
(http://ics-cert.us-cert.gov/).

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-259: Use of Hard-coded Password, 
http://cwe.mitre.org/data/definitions/259.html, web site last accessed July 
14, 2016.

b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-4520, 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, 
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S..., 
web site last accessed July 14, 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: 
http://ics-cert.us-cert.gov

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 
product.

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