Directory traversal vulnerability in Core FTP client 2.1 Build 1565 allows remote FTP servers to create or overwrite arbitrary files via .. (dot dot) sequences in responses to LIST commands, a related issue to CVE-2002-1345. NOTE: this can be leveraged for code execution by writing to a Startup folder.
https://exchange.xforce.ibmcloud.com/vulnerabilities/42605
http://www.vupen.com/english/advisories/2008/1643/references
http://www.securityfocus.com/bid/29362