The DNP3 feature on Rockwell Automation Allen-Bradley MicroLogix 1400 1766-Lxxxxx A FRN controllers 7 and earlier and 1400 1766-Lxxxxx B FRN controllers before 15.001 allows remote attackers to cause a denial of service (process disruption) via malformed packets over (1) an Ethernet network or (2) a serial line.
CVE の解決策
Rockwell Automation has released a new version of MicroLogix 1400
Series B firmware to address the vulnerability and reduce associated
risk to successful exploitation. Subsequent versions of MicroLogix 1400
Series B firmware and newer will incorporate these same enhancements.
Rockwell Automation recommends the following immediate mitigation
strategies (when possible, multiple strategies should be employed
simultaneously):
* Upgrade all MicroLogix 1400 Series B controllers to Series B FRN
15.001 or higher. Current firmware for the MicroLogix 1400 Series B
platform can be obtained at the following web address:
http://www.rockwellautomation.com/rockwellautomation/support/pcdc.page
Please refer to Rockwell Automation’s product disclosure (AID 620295) for more information on this topic available at:
https://rockwellautomation.custhelp.com/app/answers/detail/a_id/620295
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.