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Plugin false positive?

Subject: Plugin false positive?
Date: Wed, 22 Jun 2005 21:45:07 +0200
Nessus Plugin ID 10698
BugTraq ID 2513

Weblogic server /%00/ bug

http://www.nessus.org/plugins/index.php?view=single&id=10698

Maybe reports a false positive on my APC Silcon DP320E ups webinterface.

I've tried to call the http page with the /%5c/, /%00/, etc. to try and get a result, but the response from the server is 404:

Object Not Found
The requested URL '/%5c/' was not found on the APC Management Web Server.

I've tried sniffing the traffic, and my ethereal output is this :
2.457318 172.22.13.4 -> 172.22.15.10 HTTP GET /%5c/ HTTP/1.1
2.470371 172.22.15.10 -> 172.22.13.4 TCP http > 34927 [ACK] Seq=1 Ack=447 Win=1600 Len=0
2.485736 172.22.15.10 -> 172.22.13.4 HTTP HTTP/1.1 404 Not Found


Maybe my request is wrong, when I try to do this manually, but I read the plugin source code, and maybe I've musinderstood something regarding the actual request? (and can't find %00 among them in the plugin)
http_getdirlist(itemstr:"/", port:port);
http_getdirlist(itemstr:"/%2e/", port:port);
http_getdirlist(itemstr:"/%2f/", port:port);
http_getdirlist(itemstr:"/%5c/", port:port);


a telnet to the port 80, reports this when trying :

# telnet 172.22.15.10 80
Trying 172.22.15.10...
Connected to 172.22.15.10.
Escape character is '^]'.
GET /%5c/ HTTP/1.1

HTTP/1.1 400 Bad Request
Content-Length: 0
Server: Allegro-Software-RomPager/3.10

The server name is not reporting a weblogic server.

Anyone got an idea on why Nessus reports a positive?

Sincerely
Max Andersen

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