Re: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Pierre-Yves Bonnetain
Hello, Simon Ashford wrote: We recently had a security audit done and one of the points noted was that it was possible to identify the web server software in use from the Server header. So I would like to remove or completely overwrite this header with something meaningless. mod_security and

RE: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Simon Ashford
January 2007 14:53 To: users@httpd.apache.org Subject: Re: [EMAIL PROTECTED] Removing or overwriting Server header field. Hello, Simon Ashford wrote: We recently had a security audit done and one of the points noted was that it was possible to identify the web server software in use from

Re: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Joshua Slive
On 1/24/07, Simon Ashford [EMAIL PROTECTED] wrote: Hmmm... Doesn't seem to work. Still get Server: Apache in the HTTP headers regardless of SecServerSignature. Get the impression from various reading that the Server header is added by Apache pretty much at the very end of processing, after

Re: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Richard de Vries
Joshua, that is not entirely true. By making believe you're running a different webserver than you really are ... you can potentionally buy yourself some valuable time. If an attacker wants to attack/criple your site, he/she will most likely first try all known vulnerabilities for that

Re: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Joshua Slive
On 1/24/07, Richard de Vries [EMAIL PROTECTED] wrote: I have modsecurity running on my apache instances, and I often see all kinds of IIS exploits hitting my box. This then gives me time to look thru my various apache and firewall logs, and take some corrective measures like for instance

Re: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Richard de Vries
It may be a tiny roadblock as you put it, but it doesn't cost anything, nor does it hurt anything. So why wouldn't you do it? By its self it may not make a whole lot of difference, but combine a lot of these tiny roadblocks together and you'll have yourself a defense in depth strategy.

RE: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Simon Ashford
PROTECTED] Behalf Of Joshua Slive Sent: 24 January 2007 21:50 To: users@httpd.apache.org Subject: Re: [EMAIL PROTECTED] Removing or overwriting Server header field. On 1/24/07, Richard de Vries [EMAIL PROTECTED] wrote: I have modsecurity running on my apache instances, and I often see all kinds

Re: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Joshua Slive
On 1/24/07, Richard de Vries [EMAIL PROTECTED] wrote: It may be a tiny roadblock as you put it, but it doesn't cost anything, nor does it hurt anything. Another error there. Ask yourself: why is this header suggested in the HTTP spec anyway? It wasn't put there to give Netcraft something to

Re: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Fredrik Widlund
The argument you are using is a general one, saying security doesn't come from obscurity. While this is meaningful in a broad sense, in real life scenarios obscurity often improves already existing security. The problem is that all but a few mistake one for the other and that this

Re: [EMAIL PROTECTED] Removing or overwriting Server header field.

2007-01-24 Thread Yvo van Doorn
Maybe I'm going about this the wrong way but wouldn't any competent systems administrator know about a known vulnerability and patch it when it is discovered. Then again maybe I am thinking in too simple terms. - The official