The biggest security concern with print `date` is not that system's date binary has been trojaned. If that were the case, you're already screwed. I'd be more concerned that combined with some sort of path munging, an entirely different file named date could be executed. If it used an absolute path name, I dont think there would be much of a security concern at all. i.e. print `/bin/date` would be a step in the right direction.

From a coding standpoint, shelling out trivial things like this is a performance hit, and I'd flag it in any program that wasn't a throwaway. Of course, virtualsue, only advocated it for use in quick 'n dirty stuff anyway.

-Blake


In reply to Re3: Printing current date and time by blakem
in thread Printing current date and time by Anonymous Monk

Title:
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, details, 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, summary, 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.