Sent: 04 April, 2010 13:39 Subject: Re: [users@httpd] Someone hacked my apache2 serverOleg,
Yes, there is a MySQL server. And actually, I noticed that - while the
server was returning the mentioned hacked page, mysql process was on top of
the list of the "top" command. Though, it took only 1.5% of the CPU.
But, mysql is restricted to accept connections from outside world. It only
listens on local socket.
What kind of vulnarability does mysql have? Do you know where I can read
about it?
Oleg.
On Sun, Apr 4, 2010 at 4:55 PM, Daniel Reinhardt <cryptodan@xxxxxxxxxxxxx>wrote:
--------------------------------------------------
From: "Oleg Goryunov" <oleg.goryunov@xxxxxxxxx>
Sent: 03 April, 2010 21:03
To: <users@xxxxxxxxxxxxxxxx>
Subject: [users@httpd] Someone hacked my apache2 server
Hello all,
It looks like someone hacked my apache2 server and I am trying toOleg,
understand
how this could have happened.
This is what happened:
All of a sudden the server - in response to a web-browser request for a
page
- started to give a full screen of unknown characters (looked like a long
text with encoding mismatch).
The output was immediate and the same for all the web-sites located on the
server.
Looking at the page source of the output I see the following:
=========
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==================
The address indicated in the begining of the page code leads to some
chinese
server.
So, somehow it happened that the output of the apache server was
substituted
by this page, which redirected visitors to some chinese server.
But the most strange thing was that the problem dissapeared itself! So, it
last for 10 minutes then disappeared! And the again started and again
dissapeared. Finally, I turned down apache untill I understand what is
going
on...
Any idea how could that happen? How to reproduce this? How to prevent?
Where to look for logs? I have check both ssh logs and apache logs, there
is
nothing that could seem unusual there...
Any help is appreciated.
Oleg.
Are you running any sort of MySQL Database on this machine, and if so is it
patched and fully updated along with any php scripts. What you are showing
us is indicative of a SQL Injection Attack.
Shocked no one has mentioned especially with the rampant incline of the
Russian Business Network to spread its malware through the use of SQL
Injection on any vulnerable website.
Thanks,
Daniel
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Its not a vulnerability with MySQL it is a vulnerable PHP Script such as an outdated PHPMyAdmin or PHPMyAdmin itself. I hardly run it on my servers. I would promptly disable it.
Thanks,
Daniel
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