In the ABB IDAL FTP server, an authenticated attacker can traverse to arbitrary directories on the hard disk with “CWD …/” and then use the FTP server functionality to download and upload files. An unauthenticated attacker can take advantage of the hardcoded or default credential pair exor/exor to become an authenticated attacker.
packetstormsecurity.com/files/153396/ABB-IDAL-FTP-Server-Path-Traversal.html
seclists.org/fulldisclosure/2019/Jun/37
www.securityfocus.com/bid/108886
search.abb.com/library/Download.aspx?DocumentID=3ADR010377&LanguageCode=en&DocumentPartId=&Action=Launch
www.darkmatter.ae/xen1thlabs/abb-idal-ftp-server-path-traversal-vulnerability-xl-19-008/