|2018-02-27||Other||Emerson||Younes Dragoni of Nozomi Networks reported this vulnerability to NCCIC.||N/A||CVE-2018-5452 ||N/A||N/A||N/A|
# Emerson ControlWave Micro Process Automation Controller
### VULNERABLE VENDOR
### VULNERABLE PRODUCT
ControlWave Micro Process Automation Controller
Younes Dragoni of Nozomi Networks reported this vulnerability to NCCIC.
### AFFECTED PRODUCTS
The following versions of ControlWave Micro firmware, a family of SCADA RTUs, PLCs, PACs, and flow computers, are affected:
ControlWave Micro [ProConOS v.4.01.280] – firmware: CWM v.05.78.00 and prior
Exploitation may possibly cause a halt of Ethernet functionality, requiring a cold start to restore the system as well as communications related to ControlWave Designer access. This can possibly result in a loss of system availability and disruption in communications with other connected devices.
### VULNERABILITY OVERVIEW
STACK-BASED BUFFER OVERFLOW CWE-121
A stack-based buffer overflow vulnerability caused by sending crafted packets on Port 20547 could force the PLC to change its state into halt mode.
CVE-2018-5452 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)
Critical Infrastructure Sectors: Energy, Water and Wastewater Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Minnesota, USA
Emerson offers the following mitigation advice:
Assess which ControlWave products in your organization have Ethernet connectivity.
Upgrade the affected devices to firmware version 05.79.00 to correct this possible action. System firmware upgrade instructions are available in product documentation (ControlWave Micro Process Automation Controller Instruction Manual, part D301392X012).
The resolution described is available only to the user when appropriately incorporated into the application running in ControlWave Micro firmware.
Prior to upgrading the system firmware, always perform a full alarm and historical collection (archive files as well as audit logs).
The release notes and firmware upgrade are available to registered users at the following link: