Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
Contemplate this, a one-time colleague wrote a CGI that had once had an upload feature in it, the code was taken out, but his temp directory was in fact the cgi-bin directory. Someone who recognised the cgi (it was foolishly placed on a CGI download site) knew that he could upload a script to replace one that was already in the directory - but no longer used. Can you see where I am going! Somebody did just that, they uploaded a script, then they uploaded another, called them innocuously from the browser and siezed control of the machine, looked in the code for the original CGI, got the info for the database, downloaded his entire database (about 2 million records) and then proceeded to delete the database and then force a backup (another of the CGI's functions) that cleared his backup of data as well. By the time he got to the office the next day it was all over. The company went belly up and he along with it.


I learned a lot about CGI security from that experience.

In reply to Re: Re: Vetting a CGI script by jdtoronto
in thread Vetting a CGI script by dvergin

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others chilling in the Monastery: (14)
    As of 2015-12-01 15:52 GMT
    Find Nodes?
      Voting Booth?

      My keyboard shows this many letters:

      Results (16 votes), past polls