Difference between revisions of "NN2013"

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</html>
 
</html>
 
</pre>
 
</pre>
−
This content is contained in a file on a web server. It includes a graphic file. Acquired through the UMTS network of the German Internet service provider ``1\&1'', the file appears with the following content:
+
This content is contained in a file on a web server. It includes a graphic file. Acquired through the UMTS network of the German Internet service provider ``1&1'', the file appears with the following content (when downloaded in early 2011):
  
 
<pre>
 
<pre>
Line 75: Line 75:
  
  
−
\subsection{Connection-Manipulation: IP-Address-Spoofing}
+
===Connection-Manipulation: IP-Address-Spoofing===
−
\label{lsting:ipspoofing}
+
====Human-Readable====
−
\subsubsection{Human-Readable}
+
 
The request may be as follows:
 
The request may be as follows:
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\begin{scriptsize}
+
<pre>
−
\begin{verbatim}
+
 
GET / HTTP/1.1
 
GET / HTTP/1.1
 
Host: heise.de
 
Host: heise.de
 
Accept: */*
 
Accept: */*
−
\end{verbatim}
+
</pre>
−
It is issued to the IP addresses assigned to the domain \verb,heise.de,:
+
It is issued to the IP addresses assigned to the domain heise.de:
−
\begin{verbatim}
+
<pre>
 
[ad001@glas /usr/home/ad001]$ host heise.de
 
[ad001@glas /usr/home/ad001]$ host heise.de
 
heise.de has address 193.99.144.80
 
heise.de has address 193.99.144.80
Line 117: Line 115:
  
 
Connection closed by foreign host.
 
Connection closed by foreign host.
−
\end{verbatim}
+
</pre>
−
\end{scriptsize}
+
 
−
\subsubsection{Dumps}
+
====Dumps====
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\begin{scriptsize}
+
<pre>
−
\begin{verbatim}
+
14:32:35.503903 IP 139.30.32.197.59424 > 193.99.144.80.http: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1091444 ecr 2443535463], length 47
−
14:32:35.503903 IP 139.30.32.197.59424 > 193.99.144.80.http:  
+
−
Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1091444  
+
−
ecr 2443535463], length 47
+
 
E..c.U@.@.:... ..c.P. .P......(... ........
 
E..c.U@.@.:... ..c.P. .P......(... ........
 
...t..dgGET / HTTP/1.1
 
...t..dgGET / HTTP/1.1
Line 132: Line 127:
 
[...]
 
[...]
  
−
14:32:35.519615 IP 193.99.144.80.http > 139.30.32.197.59424:  
+
14:32:35.519615 IP 193.99.144.80.http > 139.30.32.197.59424: Flags [FP.], seq 65:568, ack 48, win 1448, options [nop,nop,TS val 2443535486 ecr 1091444], length 503
−
Flags [FP.], seq 65:568, ack 48, win 1448, options [nop,nop,TS  
+
−
val 2443535486 ecr 1091444], length 503
+
 
E..+L.@.@....c.P.. ..P. ..)%...............
 
E..+L.@.@....c.P.. ..P. ..)%...............
 
..d~...t Apache
 
..d~...t Apache
−
Location: http://blue4.wlan.uni-rostock.de/login.pl?action=
+
Location: http://blue4.wlan.uni-rostock.de/login.pl?action=which_interface&destination=http://heise.de/%3f
−
which_interface&destination=http://heise.de/%3f
+
 
Connection: close
 
Connection: close
 
Transfer-Encoding: chunked
 
Transfer-Encoding: chunked
Line 149: Line 141:
 
</HEAD><BODY>
 
</HEAD><BODY>
 
<H1>Found</H1>
 
<H1>Found</H1>
−
The document has moved <A HREF="http://blue4.wlan.uni-rostock.de/
+
The document has moved <A HREF="http://blue4.wlan.uni-rostock.de/login.pl?action=which_interface&amp;destination=http://heise.de/%3f">here</A>.<P>
−
login.pl?action=which_interface&amp;destination=http://heise.de/
+
−
%3f">here</A>.<P>
+
 
</BODY></HTML>
 
</BODY></HTML>
  
 
0
 
0
−
\end{verbatim}
+
</pre>
−
\end{scriptsize}
+

Revision as of 12:23, 29 April 2013

Examples of Neutrality violations

Connection-Reset: Baidu.cn

14:45:11.197146 IP wlan033084.uni-rostock.de.11479 > 220.181.111.147.http:Flags [P.], ack 2789374741, win 65535, length 241
E.....@.@.....!T..o.,..P.J<..B{.P...sZ..
GET /s?wd=falun%20gong HTTP/1.1
Host: www.baidu.com
User-Agent: ELinks/0.11.7 (textmode; FreeBSD 
8.0-BETA2 i386; 197x67-2)
Referer: http://www.baidu.com/
Accept: */*
Accept-Encoding: gzip
Accept-Language: en
Connection: Keep-Alive

14:45:11.502060 IP 220.181.111.147.http > wlan033084.uni-rostock.de.11479:Flags [.], ack 241, win 7504, length 0
E..(..@.,..z..o...!T.P,..B{..J<.P..P#...
14:45:11.502466 IP 220.181.111.147.http > wlan033084.uni-rostock.de.11479:Flags [R.], seq 1, ack 241, win 2390, length 0
E..(..@.|.yh..o...!T.P,..B{..J<.P.      V6...
14:45:11.503090 IP 220.181.111.147.http > wlan033084.uni-rostock.de.11479:Flags [R.], seq 1461, ack 241, win 2391, length 0
E..(..@.}.xk..o...!T.P,..B...J<.P.      W1H..
14:45:11.503432 IP 220.181.111.147.http > wlan033084.uni-rostock.de.11479:Flags [R.], seq 4381, ack 241, win 2392, length 0
E..(..@.~.u...o...!T.P,..B.1.J<.P.      X%...

The test was performed in February 2011.

Content-Manipulation: SMTP-EHLO

220 mail.gmx.net GMX Mailservices ESMTP {mp003}
EHLO tralalal
250-mail.gmx.net GMX Mailservices
250-8BITMIME
250-ENHANCEDSTATUSCODES
250-SIZE
250-AUTH=LOGIN PLAIN
250-AUTH LOGIN PLAIN
250 STARTTLS

Using the Internet uplink provided by the Studentenwerk Rostock (test performed in September 2011), the answer changes: 

220 *******************************************
EHLO tralala
250-mail.gmx.net GMX Mailservices
250-8BITMIME
250-ENHANCEDSTATUSCODES
250-SIZE
250-AUTH=LOGIN PLAIN
250-AUTH LOGIN PLAIN
250 XXXXXXXA

Content-Manipulation: HTML-File and Images

<html>
<body><img src="eins.png"></body>
</html>

This content is contained in a file on a web server. It includes a graphic file. Acquired through the UMTS network of the German Internet service provider ``1&1, the file appears with the following content (when downloaded in early 2011): 

<html>
<script src="http://1.2.3.4/bmi-int-js/bmi.js" 
language="javascript"></script>
<body>
<img src="http://1.1.1.4/bmi/139.30.1.202/ad001/down/eins.
png">
</body> </html>
<script language="javascript">
<!--
bmi_SafeAddOnload(bmi_load,"bmi_orig_img",1);
//-->


Connection-Manipulation: IP-Address-Spoofing

Human-Readable

The request may be as follows: 

GET / HTTP/1.1
Host: heise.de
Accept: */*

It is issued to the IP addresses assigned to the domain heise.de: 

[ad001@glas /usr/home/ad001]$ host heise.de
heise.de has address 193.99.144.80
heise.de has IPv6 address 2a02:2e0:3fe:100::8
heise.de mail is handled by 10 relay.heise.de.
[ad001@glas /usr/home/ad001]$ perl -e 'print "GET / 
HTTP/1.1\r\nHost: heise.de\r\nAccept: */*\r\n\r\n"' |
nc 193.99.144.80 80
HTTP/1.1 302 Found
Date: Fri, 04 Mar 2011 13:23:17 GMT
Server: Apache
Location: http://blue4.wlan.uni-rostock.de/login.pl?action=
which_interface&destination=http://heise.de/%3f
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=iso-8859-1

118
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<HTML><HEAD>
<TITLE>302 Found</TITLE>
</HEAD><BODY>
<H1>Found</H1>
The document has moved <A HREF="http://blue4.
wlan.uni-rostock.de/login.pl?action=which_interface
&destination=http://heise.de/%3f">here</A>.<P>
</BODY></HTML>

0

Connection closed by foreign host.

Dumps

14:32:35.503903 IP 139.30.32.197.59424 > 193.99.144.80.http: Flags [P.], ack 1, win 8326, options [nop,nop,TS val 1091444 ecr 2443535463], length 47
E..c.U@.@.:... ..c.P. .P......(... ........
...t..dgGET / HTTP/1.1
Host: heise.de
Accept: */*

[...]

14:32:35.519615 IP 193.99.144.80.http > 139.30.32.197.59424: Flags [FP.], seq 65:568, ack 48, win 1448, options [nop,nop,TS val 2443535486 ecr 1091444], length 503
E..+L.@.@....c.P.. ..P. ..)%...............
..d~...t Apache
Location: http://blue4.wlan.uni-rostock.de/login.pl?action=which_interface&destination=http://heise.de/%3f
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=iso-8859-1

118
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<HTML><HEAD>
<TITLE>302 Found</TITLE>
</HEAD><BODY>
<H1>Found</H1>
The document has moved <A HREF="http://blue4.wlan.uni-rostock.de/login.pl?action=which_interface&destination=http://heise.de/%3f">here</A>.<P>
</BODY></HTML>

0
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