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Using taint mode to prevent XSS holes

by IlyaM (Parson)
on Jan 06, 2003 at 23:10 UTC ( #224782=perlmeditation: print w/replies, xml ) Need Help??

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  1. or download this
    package Template::Secure;
    
    ...
        return $ret;
    }
    
  2. or download this
    # a bit hacky way to redefine subs without modifying sources; this
    # code can be put directly into Template::Secure module
    ...
        };
    
    }
    
  3. or download this
    #!/usr/bin/perl -T
    
    ...
    </body>
    </html>
    
  4. or download this
    #!/usr/bin/perl -T
    
    ...
    Hello, [% HTML.escape(name) %]!
    </body>
    </html>
    

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Node Type: perlmeditation [id://224782]
Approved by adrianh
Front-paged by adrianh
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[erix]: ( postgres has adopted TAP tests + perl for testing, and I'm playing around with that )
[Corion]: erix: Maybe the program re-opens STDERR or something like that? Also, I think you need to redirect first and then do the 2>&1 thing, but I never know and have to Google that
[huck]: erix some things also write to the raw console/tty/pty rather than stdout/stderr
[Discipulus]: see this useful site
[erix]: hm. ok. Either might be the case here. I guess I need to try out more
[choroba]: The redirections seem to happen right to left

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