vm-support 0.88 in VMware Tools, as distributed with VMware Workstation through 10.0.3 and other products, allows local users to write to arbitrary files via a symlink attack on a file in /tmp.
Improper Link Resolution Before File Access The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.