# Emerson DeltaV Easy Security Management Application Vulnerability
Emerson has released a publication to inform its users of a vulnerability that affects DeltaV Easy Security Management. Emerson is terminating support for the DeltaV Easy Security Management application and highly recommends all users uninstall it from all DeltaV and non-DeltaV workstations.
### AFFECTED PRODUCTS
Emerson reports that the vulnerability affects the DeltaV Easy Security Management application, which is present on the following systems:
DeltaV V12.3.1, and
Successful exploitation of this vulnerability could allow a local attacker to elevate privileges within a DeltaV control 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.
Emerson is a US-based company that maintains offices in several countries around the world, including the US, UK, Netherlands, Italy, India, Germany, France, Czech Republic, China, and Australia.
The affected product, DeltaV Easy Security Management, is an application included with DeltaV systems v12.3, v12.3.1, and v13.3 that manages the portable media ports and autorun feature for all DeltaV workstations and servers. The DeltaV Easy Security management application allows users to disable portable USB storage devices and autorun on workstations and servers in the DeltaV network. According to Emerson, DeltaV is deployed across several sectors including Chemical and Energy. Emerson estimates that this product is used worldwide.
### VULNERABILITY CHARACTERIZATION
# VULNERABILITY OVERVIEW
IMPROPER PRIVILEGE MANAGEMENTa
Critical vulnerabilities may allow a local attacker to elevate privileges within the DeltaV control system.
CVE-2016-9345b has been assigned to this vulnerability. A CVSS v3 base score of 6.8 has been assigned; the CVSS vector string is (AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L)
### VULNERABILITY DETAILS
This vulnerability is not exploitable remotely and cannot be exploited without user interaction.
# EXISTENCE OF EXPLOIT
No known public exploits specifically target this vulnerability.
Crafting a working exploit for this vulnerability would be difficult.
The DeltaV Easy Security Management server and monitoring agents can be manually uninstalled by users with privileges to install/uninstall Windows applications on each given workstation or server
A more detailed procedure to uninstall the DeltaV Easy Security application is available in the Emerson’s Knowledge Base Article # NK-1600-0336 through Emerson’s Guardian Support Knowledge Base
Simplified steps are as follows:
1) Log into each one of the workstations/servers running DeltaV Easy Security and launch Windows Programs and Features.
2) Uninstall the ‘Easy Security Server and Agent’ application using the uninstall button.
A computer reboot is not required to complete these steps
The built-in user account created during the DeltaV Easy Security installation is also removed during the uninstall process.
Emerson will provide additional details explaining how to manage USB ports and autorun features using Windows Group Policies in the near future as part of another Knowledge Base Article to be published through Emerson’s Guardian Support Knowledge Base.