Squirrelmail remote execute commands bug
Version Affected : 1.2.2
Squirrelmail is a webmail system, which allows users to send, get, read etc. mails. It has some themes, plugins etc. One of the plugins has a very interesting piece of code :
from file check_me.mod.php :
$sqspell_command = $SQSPELL_APP[$sqspell_use_app]; ... $floc = "$attachment_dir/$username_sqspell_data.txt"); ... exec ("cat $floc | $sqspell_command", $sqspell_output);
Everything should be ok, but where this page includes config files, where are defined $attachment_dir and others ? Answer: Nowhere. We can set up variables $sqspell_command and $floc. Result ? We can execute any command of course as a http serwer owner.