# ICS Advisory (ICSA-20-170-04)
## Rockwell Automation FactoryTalk Services Platform
Original release date: June 18, 2020
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### Legal Notice
All information products included in [https://us-cert.gov/ics](/ics) 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 [https://www.us-
cert.gov/tlp/](/tlp/).
* * *
## 1\. EXECUTIVE SUMMARY
* **CVSS v3 7.5**
* **ATTENTION:** Exploitable remotely/low skill level.
* **Vendor:** Rockwell Automation
* **Equipment:** FactoryTalk Services Platform
* **Vulnerability:** Improper Input Validation
## 2\. RISK EVALUATION
Successful exploitation of this vulnerability could allow an unauthenticated
attacker to execute remote COM objects with elevated privileges.
## 3\. TECHNICAL DETAILS
### 3.1 AFFECTED PRODUCTS
All versions of FactoryTalk Services Platform are affected.
### 3.2 VULNERABILITY OVERVIEW
#### 3.2.1 [IMPROPER INPUT VALIDATION
CWE-20](https://cwe.mitre.org/data/definitions/20.html)
The affected product's redundancy host service (RdcyHost.exe) does not
validate supplied identifiers, which could allow an unauthenticated, adjacent
attacker to execute remote COM objects with elevated privileges.
[CVE-2020-12033](http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12033)
has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been
assigned; the CVSS vector string is
([AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H](https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)).
### 3.3 BACKGROUND
* **CRITICAL INFRASTRUCTURE SECTORS:** Food and Agriculture, Transportation Systems, and Water and Wastewater Systems
* **COUNTRIES/AREAS DEPLOYED:** Worldwide
* **COMPANY HEADQUARTERS LOCATION:** United States
### 3.4 RESEARCHER
## 4\. MITIGATIONS
Affected users are encouraged to use Rockwell Automation Knowledgebase article
25612 to determine if FactoryTalk Services Platform is installed. Those using
the affected product are directed to implement a secure communication strategy
as outlined in Rockwell Automation Knowledgebase article 109056.
For more information please see Rockwell Automation Knowledgebase article
[1126946](https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1126946)
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
* Minimize network exposure for all control system devices and/or systems, and ensure that they are [not accessible from the Internet](https://www.us-cert.gov/ics/alerts/ICS-ALERT-10-301-01).
* 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.
CISA reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
CISA also provides a section for [control systems security recommended
practices](https://www.us-cert.gov/ics/recommended-practices) on the ICS
webpage on [us-cert.gov](https://www.us-cert.gov/ics). Several recommended
practices are available for reading and download, including [Improving
Industrial Control Systems Cybersecurity with Defense-in-Depth
Strategies](https://www.us-
cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-
CERT_Defense_in_Depth_2016_S508C.pdf).
Additional mitigation guidance and recommended practices are publicly
available on the [ICS webpage on us-cert.gov](https://www.us-cert.gov/ics) in
the Technical Information Paper, [ICS-TIP-12-146-01B--Targeted Cyber Intrusion
Detection and Mitigation Strategies](https://www.us-cert.gov/ics/tips/ICS-
TIP-12-146-01B).
Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to CISA for tracking
and correlation against other incidents.
No known public exploits specifically target this vulnerability.
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