Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

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.

PROTECT YOURSELF FROM UPLOADS!

I learned a lot about CGI security from that experience.
jdtoronto


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

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



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

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

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (4)
As of 2021-09-26 06:30 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?