Incorrect access control in nasapi in Buffalo TS5600D1206 version 3.61-0.10 allows attackers to bypass authentication by sending a modified HTTP Host header.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-5272
https://blog.securityevaluators.com/buffalo-terastation-ts5600d1206-nas-cve-disclosure-ab5d159f036d