Visible to the public Network Attack Surface Simplification for Red and Blue Teams

TitleNetwork Attack Surface Simplification for Red and Blue Teams
Publication TypeConference Paper
Year of Publication2020
AuthorsEverson, Douglas, Cheng, Long
Conference Name2020 IEEE Secure Development (SecDev)
Keywordsattack surface, cluster analysis, Clustering algorithms, Complexity theory, Metrics, Network Attack Surface, Organizations, pubcrawl, Resiliency, Scalability, Shape, Software algorithms, Surface treatment, Tools
AbstractNetwork port scans are a key first step to developing a true understanding of a network-facing attack surface. However in large-scale networks, the data resulting from such scans can be too numerous for Red Teams to process for manual and semiautomatic testing. Indiscriminate port scans can also compromise a Red Team seeking to quickly gain a foothold on a network. A large attack surface can even complicate Blue Team activities like threat hunting. In this paper we provide a cluster analysis methodology designed to group similar hosts to reduce security team workload and Red Team observability. We also measure the Internet-facing network attack surface of 13 organizations by clustering their hosts based on similarity. Through a case study we demonstrate how the output of our clustering technique provides new insight to both Red and Blue Teams, allowing them to quickly identify potential high-interest points on the attack surface.
DOI10.1109/SecDev45635.2020.00027
Citation Keyeverson_network_2020