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Re^3: PerlTaintCheck and configuration for secure paths

by shmem (Chancellor)
on Jun 22, 2006 at 17:51 UTC ( [id://556964]=note: print w/replies, xml ) Need Help??


in reply to Re^2: PerlTaintCheck and configuration for secure paths
in thread PerlTaintCheck and configuration for secure paths

If $thumbName was constructed with whatsoever variable that is tainted and not sanitized, it becomes tainted as well.

In perlsec is a snippet of code: 

sub is_tainted {
    return ! eval { eval("#" . substr(join("", @_), 0, 0)); 1 };
}

[download]
--shmem 
_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

Replies are listed 'Best First'.
Re^4: PerlTaintCheck and configuration for secure paths
by geektron (Curate) on Jun 22, 2006 at 18:08 UTC
    the operative phrasing i missed: *not sanitized* ... after re-reading perlsec for the 3231244^34 time today, the "not sanitized" part kicked in.
[reply]

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