TY  - JOUR
T1  - Design and Implementation of Input/Output Port Blocker System to
Thwart Input/Output Attacks
AU - Q. Abbas, Marwah AU - M. Abdul-Hadi, Alaa 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 19
SP  - 7098
EP  - 7104
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.7098.7104
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.7098.7104
KW  - I/O attacks
KW  -USB protection
KW  -Raspberry Pi
KW  -user authentication
KW  -arising
KW  -security
AB  - Computer systems may store temporarily or permanently vital information to individuals or
organizations, so, it can be subjected to different types of attacks. Attackers can exploit existing vulnerabilities
to reach and extract targeted information via. one of the attack points represented by the Input/Output (I/O)
ports, such as the Universal Serial Bus (USB). This study proposes a security solution to thwart malicious I/O
devices from launching I/O attacks against the computer using hardware/software system called Input/Output
Port Blocker (IOPB) that is based on a two-factor user authentication technique. The main idea of protecting
the computer system from I/O attacks is to add a security layer to isolate the I/O ports from the computer
system. In this layer, the required security policy can be applied using different security controls such as user
authentication, access control, anti-malware and encryption. This research applies to all I/O ports but as a case
study, protecting computers from I/O attacks arising from the USB ports are considered. It also describes the
proposed IOPB system design and provides a detailed implementation using C# programming language,
Raspberry Pi3 Model B, a relay switch and fingerprint reader U.are.U 4500. Finally, it studies the effect of
activating the IOPB on data transmission speed between the USB-based storage device and host considering
image, voice and video. The obtained results from the transmission of multimedia to the computer system show
that the effect of adding the IOPB increases the delay approximately by 2.5, 2 and 3.5%, respectively. This effect
can be considered negligible and has no significant effect on the system performance compared to the
protection offered by the IOPB.
ER  -