5.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.4 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
54.2%
Ashish Kamble of Qualys, Inc. has identified vulnerabilities in Tollgrade Communications, Inc.’s Smart Grid LightHouse Sensor Management System (SMS) Software EMS. Tollgrade has produced a new version to mitigate these vulnerabilities. Ashish Kamble has tested the new version to validate that it resolves these vulnerabilities.
These vulnerabilities could be exploited remotely.
Tollgrade Communications, Inc. reports that the vulnerabilities affect the following versions of LightHouse SMS Software:
An attacker who exploits these vulnerabilities may be able to restart the system, brute force a login, or change privileged parameters.
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.
Tollgrade Communications, Inc. is a United States-based company that maintains offices in the United Kingdom and Germany.
The affected product, LightHouse SMS Software, is a web-based distribution monitoring system. According to Tollgrade Communications Inc., LightHouse SMS Software is deployed across the Energy sector. Tollgrade estimates that this product is used primarily in North America, Europe, and South America.
An attacker can restart the LightHouse SMS Software without authentication.
CVE-2016-5790NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-5790, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, web site last accessed July 12, 2016.
The content of error messages facilitates a brute force authentication attack.
CVE-2016-5797NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-5797, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, web site last accessed July 12, 2016.
A low privileged user can access and modify parameters that only an administrator should be able to access.
CVE-2016-5807NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-5807, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N, web site last accessed July 12, 2016.
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.
Tollgrade Communications Inc. released updated software, Version 5.1, Patch 3, which resolves these vulnerabilities. Users should contact Tollgrade Communications Inc. for support at the numbers below.
Tollgrade Communications, Inc.
Toll Free: 1 800-777-5405
Phone: 1 724-720-1480
Updated software may be found on its support site at:
<http://customersupport.tollgrade.com>
ICS-CERT recommends that asset owners follow the vendor’s recommendations on patching the impacted products. Internet accessible control system devices should be isolated and located within protected areas of the asset owners control system network to prevent exploitation from these vulnerabilities.
ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:
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 ICS‑CERT 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.
customersupport.tollgrade.com
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
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mailto:?subject=Tollgrade%20Smart%20Grid%20EMS%20LightHouse%20Vulnerabilities&body=www.cisa.gov/news-events/ics-advisories/icsa-16-194-01
5.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.4 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
54.2%