A Data Damage Tracking Quarantine and Recovery (DTQR) Scheme for Mission-Critical Database Systems

Database security research aims to protect a database from unintended activities, such as authenticated misuse, mali-cious attacks. In recent years, surviving DBMS from an at-tack is becoming even more crucial because networks have become more open and the increasingly critical role that database servers are playing nowadays. Unlike the tradi-tional database failure/attack recovery mechanisms, in this paper, we propose a light-weight dynamic Data Damage Tracking, Quarantine, and Recovery (DTQR) solution. We built the DTQR scheme into the kernel of PostgreSQL. We comprehensively study this approach from a few aspects (e.g., system overhead, impact of the intrusion detection sys-tem), and the experimental results demonstrated that our DTQR can sustain an excellent data service while healing the database server when it is under a malicious attack