strange urlscan behaviour

From: Marco van Berkum (m.v.berkumat_private)
Date: Tue Mar 18 2003 - 03:21:38 PST

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    Hi,
    
    while pentesting a remote customer I came across this issue:
    
    $ telnet somehost 80
    Trying xxx.xxx.xxx.xxx...
    Connected to somehost.
    Escape character is '^]'.
    SEARCH / HTTP/1.0
    
    HTTP/1.1 200 OK
    Server: Microsoft-IIS/5.0
    Cache-Control: no-cache,no-transform
    Expires: Tue, 18 Mar 2003 10:49:32 GMT
    Content-Location:
    http://xxx.xxx.xxx.xxx/intro.htm?404;http://xxx.xxx.xxx.xxx/>?~/
    Vary: *
    Date: Tue, 18 Mar 2003 10:49:32 GMT
    Content-Type: text/html
    Accept-Ranges: bytes
    Content-Length: 302
    
    <HTML>
    bladiebla text text
    </HTML>
    Connection closed by foreign host.
    $
    
    This site is using lockdown but what suprised me a bit is  that its nicely
    telling me that its using urlscan in the Content-Location header.
    It  exposes this information by using the SEARCH, TRACE,  PROPFIND
    and PROPPATCH option,  any other requests do not expose 'interesting'
    information in the Content-Location header.
    
    according to the OPTIONS request these options are allowed:
    
    Public: OPTIONS, TRACE, GET, HEAD, POST
    Allow: OPTIONS, TRACE, GET, HEAD
    
    I was not able to  produce this on other machines.
    Any hints on what might be causing this ?
    
    Cheers,
    Marco van Berkum
    
    
    --
     ----------------------------------------
    |    Marco van Berkum / MB17300-RIPE     |
    | m.v.berkumat_private / http://ws.obit.nl |
     ----------------------------------------
    
    
    
    
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