From: ./lawn-login-0.0.7/lib/lawn.rb Line 24 exposes the password to the process table via the #{password} variable. If this Gem is used in the context of a rails application it maybe possible to inject commands remotely into the shell as these variables are not sanitized. 021- end 22- 23- def login(username, password) 24: `curl -s -f -F username=\{username}\ -F password=\{password}\ -F iss=\false\ -F output=\binary\ https://auth.lawn.gatech.edu/index.php` 25- end 26-end