Physical Sciences and Mathematics Commons^™

The Challenges Of Network Security Remediation At A Regional University., William R. Simons

Electronic Theses and Dissertations

This thesis describes challenges encountered during a year-long effort to improve the security of the 3,300 node administrative computer network at East Tennessee State University. The key remediation strategies used included employing the vulnerability scanner Nessus to profile the network, analyzing the scan results, and attempting to remove the most critical vulnerabilities found. The project succeeded in decreasing known “high” criticality vulnerabilities on campus by 26.1%, and confirmed four standard observations about the challenges of network administration:

• Vulnerability scanning is a lengthy task best performed in parallel and supported by automated data analysis.
• Securing a network is like trying to …