Directory traversal vulnerability in the BlueCat Networks Proteus IPAM appliance 2.0.2.0 (Adonis DNS/DHCP appliance 5.0.2.8) allows remote authenticated administrators, with certain TFTP privileges, to create and overwrite arbitrary files via a .. (dot dot) in a pathname. NOTE: this can be leveraged for administrative access by overwriting /etc/shadow.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35807
http://www.vupen.com/english/advisories/2007/2840
http://www.securityfocus.com/archive/1/475667/100/0/threaded
http://securityreason.com/securityalert/2986