This indicates an attack attempt against a Directory Traversal vulnerability in BlackBerry Workspaces Server.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application while handling maliciously crafted requests. A remote attacker can exploit this to execute or upload arbitrary files, or reveal the content of arbitrary files anywhere on the web server.
The following Workspaces Server components:
Appliance-X versions 1.11.2 and earlier
vApp versions 5.6.0 to 5.6.6
vApp versions 5.5.9 and earlier
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.