Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

Re: Security techniques every programmer should know

by fizbin (Chaplain)
on Dec 30, 2004 at 15:41 UTC ( #418279=note: print w/ replies, xml ) Need Help??

Help for this page

Select Code to Download


  1. or download this
    # $page and $section are parameters from the user that have been clean
    +ed of 0 bytes and obvious control characters
      my $mantext = ''; my $status;
    ...
        else {exec('/usr/bin/man', $page);}
      }
    # now reformat $mantext and display it.
    
  2. or download this
      section=-P/usr/bin/whatever%20command%20I%20want&page=cat
    
  3. or download this
    # $page and $section are parameters from the user that have been clean
    +ed of 0 bytes and obvious control characters
      my $mantext = ''; my $status;
    ...
        else {exec('/usr/bin/man', '--', $page);}
      }
    # now reformat $mantext and display it.
    
  4. or download this
      my $qpage = quotemeta($page);
      my $qsect = quotemeta($section || '');
      exec("/usr/bin/man $qsect $qpage");
    
  5. or download this
    --
    @/=map{[/./g]}qw/.h_nJ Xapou cets krht ele_ r_ra/;
    map{y/X_/\n /;print}map{pop@$_}@/for@/
    

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://418279]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (17)
As of 2014-12-18 19:02 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (59 votes), past polls