The host is installed with Linux-PAM (aka pam) 1.1.8 and is prone to multiple directory traversal vulnerabilities. The flaws are present in the application, which fails to properly handle a .. (dot dot) in the (1) PAM_RUSER value to the get_ruser function or (2) PAM_TTY value to the check_tty function. Successful exploitation allow local users to create arbitrary files or possibly bypass authentication.