Greetings --Running 2.2.17 on a CentOS 5.5 host. All the usual security tweaks (or, at least the ones I'm familiar with) in place. Had our network types run a Nessus scan against the host - all fine, except for the following, which I'm having trouble interpreting (and hoping for some 'interpretative guidance' here). It suggests using a rewrite to handle the issue (something I've never done). I'm also not entirely sure of what TRACE and TRACK do?
Thanks in advance -- semi-newbie, so flame throwers to 'singe only' please. ;-)
Basically, the scan found the following 'moderate risk' issue:
Synopsis :
Debugging functions are enabled on the remote web server.
Description :
The remote webserver supports the TRACE and/or TRACK methods. TRACE
and TRACK are HTTP methods that are used to debug web server
connections.
See also :
http://www.cgisecurity.com/whitehat-mirror/WH-WhitePaper_XST_ebook.pdf
http://www.apacheweek.com/issues/03-01-24
http://www.kb.cert.org/vuls/id/288308
http://www.kb.cert.org/vuls/id/867593
http://sunsolve.sun.com/search/document.do?assetkey=1-66-200942-1
Solution :
Disable these methods. Refer to the plugin output for more information.
Risk factor :
Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 3.9
(CVSS2#E:F/RL:W/RC:C)
Public Exploit Available : true
Plugin output :
To disable these methods, add the following lines for each virtual
host in your configuration file :
RewriteEngine on
RewriteCond %{REQUEST_METHOD} ^(TRACE|TRACK)
RewriteRule .* - [F]
Alternatively, note that Apache versions 1.3.34, 2.0.55, and 2.2
support disabling the TRACE method natively via the 'TraceEnable'
directive.
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