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Category:   Application (Web Server/CGI)  >   Oracle WebLogic Vendors:   BEA Systems
BEA WebLogic May Disclose Internal Hostname to Remote Users
SecurityTracker Alert ID:  1006448
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Apr 2 2003
Impact:   Disclosure of system information
Exploit Included:  Yes  

Description:   An information disclosure vulnerability was reported in BEA's WebLogic server. A remote user can determine the target server's internal hostname.

It is reported that a remote user can send the following URL to the server to determine the server's internal hostname:

GET . HTTP/1.0\r\n\r\n

On Windows-based system, the name returned is the NetBIOS name.

The vendor has reportedly been notified.

Impact:   A remote user can determine the server's internal host name.
Solution:   No solution was available at the time of this entry.
Vendor URL: (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Red Hat Linux), Linux (SuSE), OpenVMS, OS/400, UNIX (AIX), UNIX (HP/UX), UNIX (Open UNIX-SCO), UNIX (Solaris - SunOS), UNIX (Tru64), Windows (NT), Windows (2000), Windows (XP)

Message History:   None.

 Source Message Contents

Subject:  BEA WebLogic internal hostname disclosure


During a penentration test, I discovered that the BEA Weblogic Server 
reveals it hostname (on windows machines NetBIOS name) while sending the 
following request:

GET . HTTP/1.0\r\n\r\n

On older systems (Weblogic 7.0), a simple "BLAH . BLAH\r\n\r\n" will do 
the same trick.  BEA was contacted about two weeks ago, but I haven't 
heard from them (yet).


Michael Hendrickx
Security Engineer
Scanit NV/SA


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