Apache Reference: mod_perl, PerlTaintCheck

PerlTaintCheck

Enable Perl Tainting Mode
Syntax: PerlTaintCheck on|off
Example: PerlTaintCheck on
Since: Apache 1.2

This directive enables Perl's taint checking on start-up for all scripts that are executed under the control of mod_perl, but especially Apache::==Registry scripts. Taint checks cause Perl to die with a fatal error if unchecked user-provided data (for instance, the values of CGI variables) are passed to a potentially dangerous function, such as exec(), eval(), or system(). See the UNIX manual page perlsec(1), which is provided by the Perl package, for details.