Abstract
In Industrial Control Systems (ICS), security issues are getting more and more attention. The number of hacking attacks per year is endless, and the attacks on industrial control systems are numerous. Programmable Logic Controller (PLC) is one of the main controllers of industrial processes. Since the industrial control system network is isolated from the external network, many people think that PLC is a safety device. However, virus attacks in recent years, such as Stuxnet, have confirmed the erroneousness of this idea. In this paper, we use the vulnerability of Siemens PLC to carry out a series of attacks, such as S7-200, S7-300, S7-400, S7-1200 and so on. We read the data from the PLC output and then rewrite the data and write it to the PLC. We tamper with the writing of data to achieve communication chaos. When we attack the primary station, all slave devices connected to the primary station will be in a state of communication confusion. The attack methods of us can cause delay or even loss of data in the communications from the Phasor Data Concentrator (PMU) to the data concentrator. The most important thing is that our attack method generates small traffic and short attack time, which is difficult to be identified by traditional detection methods.
Highlights
Most of the Industrial Control Systems (ICS) consist of several sub-components, such as Programmable Logic Controller (PLC), Human Machine Interface (HMI), Master Terminal Unit (MTU) and Remote Terminal Unit (RTU) [1]
Since the industrial control system network is isolated from the external network, many people think that PLC is a safety device
PLC as the main controller has become the object of many hackers
Summary
Most of the ICS consist of several sub-components, such as PLC, Human Machine Interface (HMI), Master Terminal Unit (MTU) and Remote Terminal Unit (RTU) [1]. The safe operation of the power system requires high-precision time synchronization within a wide range. Safe and reliable high-precision time synchronization technology is a basic requirement for the normal operation of the smart grid in the contemporary power grid and in the future. We use the Siemens PLC access control vulnerability, first establish a legal connection with the PLC, and read and write the PLC’s intermediate register data to achieve the effect of abnormal communications. In this way, we can attack the Siemens S7 series controllers, such as S7-200, S7-300, S7-400, S7-1200 and so on.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
