I believe your code should look for literal periods: 

  $req =~ s/^\.\.\///;

[download]
But that's still poor, because what about: 
   blah/../../topsecretpages/page.html

[download]
or 
   ../../topsecretpages/page.html

[download]
 Update: Chady is right. I retract.



pbeckingham - typist, perishable vertebrate.

In reply to Re^3: request for review: file reading security by pbeckingham
in thread request for review: file reading security by Anonymous Monk

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